Java Sitemap - Page 1 2016-09-26

Using Java Naming Conventions
Using standard Java naming conventions will increase the readability of your code and make it easier to maintain and use for other programmers.

Example Java Code For Building a Simple GUI Application
An example Java class for building a simple GUI application. This program corresponds to the Coding a Simple Graphical User Interface - Part I

How Many Bits Is My Domputer? How to Check
How many bits is my computer? Follow these steps if you want to find out if your computer is 32-bit or 64-bit on a Windows operating system.

What Is Java Computer Programming Language?
What is Java computer programming language? Find out what Java is, who created it, and why people choose to program with it since the early 90s.

Tips for Declaring Variables in Java
The use of variables is key to any program and normally one of the first things to happen in any program. Learn about declaring variables in Java.

How to Generate Java Random Numbers
Learn how to generate random numbers using the java.util.Random class. Generating a series of random numbers is a common task that crops up.

Aggregation in Java: Definition and Examples
Aggregation is a relationship between two objects that is best described as a

Association in Java - Definition and Examples
The association relationship is a way of describing the fact that a class knows about, and holds a reference to another class.

Doubly-Even Magic Squares
Take the odd magic squares program one step further with another test of your programming logic.

Counting Rabbits
Here's a idealistic way for counting rabbits – can you determine how many will exist after 20 generations?

The Infinite Loop
Can you rewrite this Java code so that there is no longer an infinite loop?

How to Generate Random Numbers in Java
Following on from the first article on generating random numbers in Java, find out how to generate random fractional numbers and boolean values.

Generating Unique Random Numbers Using Java
Sometimes the random numbers to be picked need to be unique.

Definition for the Java Term: Literal
A literal is a value that can be written directly into Java source code. Learn more about literal patterns and examples.

Introduction to Object-Oriented Programming
Understanding object-oriented programming is fundamental to becoming a truly great Java programmer. The key concepts of objects are discussed in this article.

What Is Unicode and How Is It Used?
Learn about the Unicode standard, a global way to encode the characters that computers use.

Accessors and Mutators
In object-oriented programming sometimes it's necessary to provide access to the private fields of an object. The use of accessors and mutators are a way to enable that access.

Using Java Constructors: An Easy How-To Guide
When a new instance of an object is created the constructor method is called. Examples of how to create constructor methods in Java are discussed here.

Using Multiple Constructors in Java
Did you know you can use more than one constructor method to create a new object? Find out more here. Page 2.

Java Error Message: Reached End of File While Parsing
Reached end of file while parsing is a compile time error.

Common Runtime Error and Its Solution
See if you can debug a piece of code that produces one of the most fundamental Java runtime errors.

Primitive Data Types in Java Programming
The Java language provides eight primitive data types that define simple values a program can use.

Definition for the Java Term: Class
A class specifies the design of an object.

Java Syntax - Declaring and Using Constants in Java
Throughout the lifetime of a variable its value might change many times. But what if you know the value will never change? Or more importantly you want to make sure it can't change? This is when you need to use a constant.

Scope - Definition for the Java Term
Scope refers to the lifetime and accessibility of a variable. How large the scope is depends on where a variable is declared.

Java Error Message: Cannot Find Symbol
Cannot Find Symbol is a compile-time error.

Java Syntax: Creating a Message Dialog Box - Part I
Learn how to use the JOptionPane class to make a simple message dialog box

Definition for the Java Term: Object
An object is an instance of a class.

Java Syntax: Building an Input Dialog Box
Find out how to use the showInputDialog method of the JOptionPane class to make different kinds of input dialog boxes.

If-Then and If-Then-Else Conditional Statements in Java
Use the if-then and if-then-else statements when your program needs to make a simple decision about what to do next.

Static Method Definition - Java
Static methods are created using the static keyword.

Example Java Code: Password Dialog Box Program
Example Java program code for creating a simple password dialog box.

Java Syntax: Switch Statement for Multiple Choices
Use the switch statement when you want your program to chose between a number of alternative options.

Using the FlowLayout Manager with Component in Java
FlowLayout with Component Flow and FlowLayout Row is the simplest layout manager. Let's examine how it works with default settings.

Using the BorderLayout in Java
An overview of the BorderLayout layout manager.

Working with the GridLayout in Java
A look at how to use the GridLayout layout manager.

What Is JavaFX and Its History?
Find out what JavaFX is and what it can be used to create.

Java Syntax: The String Class
The String class lets you create and manipulate Strings. Learn more about the String class as used in Java.

Java Syntax: The String Literal
String Literals are used for representing string values in Java code.

Java Syntax: Converting Strings to Numbers & Vice Versa
How to convert Strings to numbers and back again.

ADT
Downloading the Android Developer Tool bundle

Definition of Java Term: Event Source
An event source is a component that triggers an event from some action performed on it.

Definition for the Java Term: Event
An event typically occurs when a user interacts with a user interface.

Event Listener - Definition From the Java Glossary
An event listener receives and process events.

JavaFX Controls: ComboBox Overview
A look at the JavaFX ComboBox class.

Definition for the Java Term: Anonymous Inner Class
An anonymous inner class is a class with no name that will only have one instance created.

JavaFX Controls: TreeView Overview
A look at the JavaFX TreeView class

JavaFX: FlowPane Overview
A look at how to use the JavaFX FlowPane layout

The JTable Table Model
A look at the table model behind the JTable

JavaFX: GridPane Overview
How to use the GridPane layout to place child nodes in a grid format.

Definition for the Java Term: Parameter
Parameters are the variables that are listed as part of a method declaration.

JavaFX Controls: ToggleButton Overview
An look at the JavaFX ToggleButton class

JavaFX: FlowPane Example Program
An example program showing how to use the JavaFX FlowPane layout

JavaFX: TilePane Example Program
An example program showing how to use the JavaFX layout

JavaFX Controls: RadioButton Overview
A look at the JavaFX RadioButton class

ToggleButton Example Program
Example Java code showing the ToggleButton in action.

The MouseMotionListener Interface
Implement the MouseMotionListener by attaching it to a JLabel.

A KeyListener Example Program
An example program showing how to implement the KeyListener interface.

TreeView Example Program
Example Java code showing how the TreeView JavaFX control is used.

JavaFX: GridPane Example Program
An overview of how to use the GridPane to make a table format.

DefaultTableModel Example Program
An example program to show the DefaultTableModel in action.

"Concatenation" Definition - Glossary of Java Terms
Concatenation describes the operation of joining two strings together.

ItemListener Example Code Program - Java
Example Java code showing the ItemListener event listener in action

JavaFX CSS Example Program
This example code shows how to simply switch between two JavaFX stylesheets.

Implement the ActionListener through the class which contains the graphical interface.
Implement the ActionListener through the class which contains the graphical interface.

Program listing for a simple calculator without any ActionListeners added
Program listing for a simple calculator without any ActionListeners added

Creating A Simple Calculator to Handle Button Events
Building an interface for a simple calculator program

How to Handle Mouse Events
A step-by-step by guide implementing the MouseListener, MouseMotionListener, and MouseWheelListener event listeners using a simple gui application.

A Simple Gui Application
Build a simple gui application. Java.

Implementing the MouseListener Interface
How to implement the MouseListener by attaching it to a JLabel

The MouseWheelListener Interface
Implement the MouseWheelListener interface by attaching it to a JScrollPane.

JavaFX Controls: ChoiceBox Overview
A look at the JavaFX ChoiceBox class

ListView and ComboBox Example Program
Example Java code showing how the ListView and ComboBox JavaFX controls can be used.

Implement the ActionListener Interface As An Inner Class
Implement the ActionListener Interface As An Inner Class

Binary Stream Example Code
Example code for reading and writing to a binary file one byte at a time.

Character Stream Example Code
Example Java code showing how to read a text file one character at a time

Definition for the Term: Strongly Typed
Java is a strongly typed programming language because every variable must be declared with a data type.

Definition for the Term: Subclass
A subclass is a class that extends another class.

Super - Java Term Glossary Definition
The super keyword enables a subclass to call the methods and fields of its superclass.

Construct the JTable
Create a JTable using two arrays.

Overview of the Java I/O
A look at how Java deals with I/O

Install the JDK
Step-by-Step instructions on how to install the latest version of the JDK.

Wait for the Install to Start
Step-by-Step instructions on how to install the latest version of the JDK.

Accept the License Agreement
Step-by-Step instructions on how to install the latest version of the JDK.

The Custom Setup Window
Step-by-Step instructions on how to install the latest version of the JDK.

Support for European Languages
Step-by-Step instructions on how to install the latest version of the JDK.

Almost Finished
Step-by-Step instructions on how to install the latest version of the JDK.

Installation Complete
Step-by-Step instructions on how to install the latest version of the JDK.

Unary Operator - Java Glossary Definition
Unary operators return the result of an operation on only one operand.

Definition for the Term: UTF
UTF stands for

Summary
Summary. Java.

A Simple Table Example Java Code Program
An example program showing how to use the JTable class

Using a Table Model
Using a table model to create the JTable

Getting Started With JavaFX Using Netbeans
How to make a Hello World JavaFX application using NetBeans

JavaFX Controls: TextField Overview
A look at the JavaFX TextField class

How to Create a Simple Table
A look at the JTable class and how it can be used to make simple tables for GUIs

Adding a ComboBox Editor
Adding a comboBox as an editor for a column

How to Read and Write Byte Streams - Java
Learn how to read bytes from a binary file one byte at a time.

JavaFX User Interface Controls Part I
An overview of the most commonly used JavaFX user interface controls.

Creating Your First Java Program: Open a Terminal Window
Most programs that you run on your computer are windowed applications. Learn how to open a terminal window to run your Java program.

Installing Files
Step-by-Step instructions on how to install the latest version of the JDK.

Simple Calculator Example Program - Java Code
This program creates a simple calculator that performs addition and subtraction. It highlights how to implement the ActionListener interface in three different ways.

Implement the ActionListener interface as an Anonymous Inner Class
Implement the ActionListener interface as an Anonymous Inner Class

The ActionListener Interface
The ActionListener Interface. Java.

A Progress Bar Example Program
An example Java program showing how to use the JProgressBar

JavaFX: BorderPane Example Program
An example of how to use the JavaFX BorderPane layout

Select Platform and Language
Make your first Java download the right one. Step-by-Step instructions on how to download the latest version of the JDK.

Creating Your First Java Program: Introduction
Are you ready to start programming in Java? Follow this step-by-step tutorial to learn how to write, compile and run Java programs.

Building Your First Java Applet
Follow this step-by-step tutorial to learn how to write, compile and run Java applets.

Overloading in Java - Definition and Examples
Overloading is the ability to define more than one method with the same name in a class.

Statement (Java): Definition, Types, and Examples
If expressions are akin to clauses in the English language, then statements are like sentences.

Open a Terminal Window
Follow this step-by-step tutorial to learn how to write, compile and run Java applets.

Java Syntax: JTextField Overview
An overview of the JTextField class

What Is an Exception?
Find out what an exception is and how Java handles them.

Definition for the Term: Modifier
A modifier is a keyword placed in a class, method or variable declaration that changes how it operates.

Definition for the Term: Relational Operator
A relational operator compares two operands to determine whether one is greater than, greater than or equal to, less than, less than or equal to the other.

Designing and Creating Objects
Follow this step-by-step guide to learn how to design and create an object.

Definition for the term: Source Code
Source code refers to the programming instructions used to create an application.

Run the Executable File
Make your first Java download the right one. Step-by-Step instructions on how to download the latest version of the JDK.

Download the Installation File
Make your first Java download the right one. Step-by-Step instructions on how to download the latest version of the JDK.

Disabling (or Enabling) the Java Plugin in a Browser
Here are the steps to disable (or enable) the Java plugin in a browser.

How to Work with Arrays - Declaring and Initializing
How to make use of arrays. Java.

Shifting Bits
How are you at shifting bits right and left?

Getting Started With NetBeans – Hello NetBeans World!
If you're new to programming and want to find out what it's like to use an IDE, this is the guide for you. Learn how to write a simple Hello NetBeans World program using the NetBeans IDE.

Getting Started With NetBeans – Hello NetBeans World!
If you're new to programming and want to find out what it's like to use an IDE, this is the guide for you. Learn how to write a simple Hello NetBeans World program using the NetBeans IDE.

How to Make a Progress Bar
How to make a progress bar using the JProgressBar class

Java Download and Install the Java SE Development Kit
Make your first Java download the right one. Step-by-Step instructions on how to download the latest version of the JDK.

Definition for the Term: Implicit Parameter
In a method call the implicit parameter is the object the method belongs to.

Getting Started With NetBeans – Hello NetBeans World!
If you're new to programming and want to find out what it's like to use an IDE, this is the guide for you. Learn how to write a simple Hello NetBeans World program using the NetBeans IDE.

JavaFX: BorderPane Overview
A look at how to use the JavaFX BorderPane class

Java Syntax: JLabel Overview
An overview of the JLabel class. Java.

All About the Java Platform Editions
Java technology recognizes that developers build different applications based on the differing needs of their users. Discover the different editions of the Java platform available to developers.

Expression (Java): Definition and Examples
Expressions are essential building blocks of any Java program. They are built using values, variables, operators and method calls.

What Is Netbeans in Java?
NetBeans is a sophisticated IDE that aims to help developers build any type of application.

Definition for the Java Term: Main Class
A main class is a class that contains a main method

What Is a Declaration Statement in Java?
Declaration statements are used to declare variables.

Definition for the Java Term: Garbage Collection
Garbage collection frees up memory that is no longer in use.

Definition for the Java Term: GUI
A GUI is the graphical interface presented to the user of an application.

Conditional Operator Definition and Explanation
Conditional operators are used to evaluate a condition that's applied to one or two boolean expressions.

Definition and Examples of Constructor Chaining
Constructor chaining occurs through the use of inheritance.

Definition for the Java Term: Compiler
A Java compiler translates the Java code written by a programmer into instructions a computer can execute.

Compound Assignment Operator - Definition
Compound assignment operators provide a shorter syntax to assign the results of the arithmetic and bitwise operators.

Definition for the Java Term: API
An API provides functionality for developers to use in their applications.

Definition for the Term: Assignment Operator
The most commonly used operator is the assignment operator.

Definition for the Term Bitwise Operator
Bitwise operators perform operations on the bits of their operands.

Definition for the Term: Superclass
A superclass is a class that has been extended by another class.

Using Inheritance: Defining a Superclass and Subclass
Discover how a class can inherit the state and behaviors of another class.

Using Inheritance
Discover how a class can inherit the state and behaviors of another class. Page 2.

Coding a Simple Graphical User Interface - Part II
This step-by-step guide shows how to build the simple GUI application created in Coding a Simple Graphical User - Part I using the NetBeans GUI Builder.

Creating the JFrame
This step-by-step guide shows how to build the simple GUI application created in Coding a Simple Graphical User - Part I using the NetBeans GUI Builder.

Add the two JPanels
This step-by-step guide shows how to build the simple GUI application created in Coding a Simple Graphical User - Part I using the NetBeans GUI Builder.

Place the JButton on the JFrame
This step-by-step guide shows how to build the simple GUI application created in Coding a Simple Graphical User - Part I using the NetBeans GUI Builder.

Final Line of Code
This step-by-step guide shows how to build the simple GUI application created in Coding a Simple Graphical User - Part I using the NetBeans GUI Builder.

Coding a Simple Graphical Interface - Part III
A step-by-step guide to coding a JavaFX user interface that has a similarly appearance functionality as the one created in part one using Swing.

The JavaFX Program Structure
Looking at the JavaFX program structure

Setting the Stage and Scene
How a Stage and Scene are used to hold the graphical components.

Add the FlowPanes
Create the FlowPane containers and add them to the BorderPane

Create the Button
Create the Button that determines the visibility of the FlowPanes.

Example of JavaFX Code for Building a Simple GUI Application
An example JavaFX application to show how to build a simple graphical user interface. The interface is the same as those built using Swing in part 1 and NetBeans GuiBuilder in part two.

Object-Oriented Programming: Learn how to employ the key concepts of object-oriented programming with Java.
All the articles and tutorials concerning object-oriented programming are brought together in once place.

How to Prevent Inheritance
Some classes are designed not to be extended by other classes. Find out how to prevent a class being inherited by another.

Simple Debugging With NetBeans
A simple guide to spotting and fixing compile-time errors using NetBeans.

Beginner's Corner Lesson 1 - Getting Started
The focus of this lesson is setting up Java on your computer, finding a Java editor to use, writing a simple Java program and to have a simple look at how to deal with errors.

Building the Application Window Using a JFrame
A step-by-step guide to manually coding a simple graphical user interface. Part two of this step-by-step shows how to code the same graphical user interface using NetBeans Gui Builder.

Java Is Case Sensitive
When coding in Java it's important to remember that Java is case sensitive. Here are some tips to avoid common case sensitivity pitfalls.

Definition for the Term: Method Signature
A method signature is part of the method declaration. It is the combination of the method name and the parameter list.

Java GUI - What Is a Dialog Box?
Find out what a dialog box is and how they can be an effective way to get the user’s attention.

Beginner's Guide to Using an IDE Versus a Text Editor
Before you start to learn Java, you need somewhere to write your programs. Here's a guide to using an IDE versus a text editor.

Definition for the Java Term: Main Method
The main method is the starting point for the execution of every Java application.

Set-up the NetBeans Project
A step-by-step guide to manually coding a simple graphical user interface. Part two of this step-by-step shows how to code the same graphical user interface using NetBeans Gui Builder.

Adding the Two JPanels
A step-by-step guide to manually coding a simple graphical user interface. Part two of this step-by-step shows how to code the same graphical user interface using NetBeans Gui Builder.

Finishing Touches
A step-by-step guide to manually coding a simple graphical user interface. Part two of this step-by-step shows how to code the same graphical user interface using NetBeans Gui Builder.

An Overview of Layout Managers
There are a number of layout managers designed to make it easy to control where the components of a graphical user interface are positioned.

Using the GridBagLayout - Java Overview
An overview of the GridBagLayout layout manager.

Using the CardLayout
An overview of how to use the CardLayout layout manager.

Robocode : Build a Simple Robocode Robot with Java
It's time for some robot carnage.

Code Points
Try and discover which characters are represented by the Unicode code points.

Coding a Simple Graphical User Interface - Part I
A step-by-step guide to manually coding a simple graphical user interface. Part two of this step-by-step shows how to code the same graphical user interface using NetBeans Gui Builder.

BorderLayout Example Program
An example program to show how to code a BorderLayout layout manager with assigned horizontal and vertical spacing.

GridLayout Example Program
Example Java code to show how the GridLayout, the BorderLayout and the BoxLayout can be used to make a customizable graphical user interface for a simple calculator.

BoxLayout Example Program - Java
An example Java program showing a simple application using the BoxLayout.

CardLayout Example Program in Java
A simple application showing how the CardLayout can be used to switch JPanels.

GridBagLayout Example Program in Java
Example code showing how the GridBagLayout layout manager can be used to position components.

Definition for the Java Term: Constant
A constant is a variable whose value cannot change once it has been assigned.

Java Syntax: Manipulating Strings
The string class provides a few methods for manipulating Strings.

Java Syntax: Indeterminate Loops
Use an indeterminate loop when you're not use how many times you want a code block to loop. In Java these loops are the do..while loop and while loop.

Java Syntax: Showing a Color Chooser Dialog
The JColorChooser class is used to create a detailed color chooser dialog.

Java Programming Exercises: Countries and Their Capitals
Can you get a user to pick a country from a list and then tell them what the capital city of the country they picked is?

Java Programming Exercises: Countries and Their Capitals
Can you get a user to pick a country from a list and then tell them what the capital city of the country they picked is? Page 2.

Example Java Program: Fun With Strings Example Code
A Java program to show the String class in action.

Example Java Code: Input Dialog Box Program
Example Java program code to make several different types of input dialog boxes using the showInputDialog method of JOptionPane.

FlowLayout Example Program
Example Java code for a program which provides a user with options to change the alignment and spacing of components in a FlowLayout layout manager.

How Make a Java Syntax Password Dialog Box
Any application providing a secure environment for a user needs to be able to safely obtain the password for that user.

Example Java Code: Color Chooser Program
Example Java program code that shows the two static methods of the JColorChooser class in action to make a color chooser dialog box.

Example Java Code: Simple Message Dialog Boxes Program
Example Java program code for how to make simple message dialog boxes using the JOptionPane class.

Java Syntax: How to Make a Modeless Dialog Box
By using the JDialog class you can create custom dialog boxes that can be modeless.

Java Syntax: Presenting a File Dialog to the User
The JFileChooser class can be used to present file dialogs to the user to help them open or save a file.

Murach's Java Programming (4th Edition)
A book review of the 4th edition of Java Programming by Murach Publishing

Java Syntax: JPasswordField Overview
A look at the most useful methods of the JPasswordField class.

Definition for the Java Term: Loops
Loops are a way of executing the same code block many times.

Java Syntax: Making Decisions Example Program
Example Java code showing how to use if..then.else and switch statements.

Definition for the Java Term: Conditional Statements
Conditional statements enable a program to make a decision and preform an action based on that decision.

Definition for the Java Term: JFrame
A JFrame is a top-level container for graphical components.

Getting Started
Before you jump straight into programming applications, it’s a good idea to learn a little about the Java language and what it has to offer. By following the articles in this section, you will be ready to create your first Java program.

- By Category
An index of categories in the

JavaFX
Discover how to build rich graphical user interfaces using JavaFX.

Definition for the Java Term: ActionListener
The ActionListener interface is an event listener for actions performed by some graphical components.

Java Syntax: Using a Key Listener Interface
How to implement the Key Listener Interface, which provides the ability to find out what keys a user is pressing while a graphical component has the focus of the graphical user interface.

Using the ArrayList
How to use the ArrayList class. Java.

Using Command-Line Arguments in Java
How to make use of command-line arguments in your Java applications.

Deleting, Copying and Moving Files and Directories
How to delete, copy and move files using nio.2

The Try-Catch-Finally Blocks in Java
Java handles exception through the use of the try-catch-finally blocks

Three Types of Exceptions in Java
There are three different types of exceptions a Java application might encounter.

JavaFX With FXML Using Scene Builder and NetBeans
How to create a simple JavaFX FXML application using NetBeans and Scene Builder.

DefaultTableModel Class in Java Stores Data for the JTable
The DefaultTableModel class in Java is a subclass of the AbstractTableModel that stores data for the JTable when no table model is specifically defined by the programmer.

Definition for the Java Term Identifier
An identifier is simply a name given to a package, class, interface, method, or variable.

Ternary Operator - Java Definition
The ternary operator ?: earns its name because it's the only operator to take three operands.

Variable - Definition for the Term in Java
A variable is a container that holds values that are used in a Java program.

Void Keyword Definition in Java
The void keyword denotes that a method does not have a return type.

What Is a Package in Java?
Bring a sense of order to your classes through the use of packages.

Glossary of Java Error Messages : "N"
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Glossary of Java Error Messages : "P"
Glossary of Java Error Messages :

Building Applications
Build applications for your desktop, and discover how to package them for deployment to other computers.

Glossary of Java Terms : J
A glossary of Java terms starting with the letter J.

Java Community
Discover the Java community through these links to blogs, websites, usergroups and more.

Java Glossary
The definitions for Java terms are listed alphabetically according to their first letter.

Programming Concepts
Increase your knowledge about how computers work, and what it means to program them.

Glossary of Java Terms: W
A glossary of Java terms starting with the letter W.

Glossary of Java Error Messages : "O"
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Glossary of Java Error Messages : "Q"
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Glossary of Java Error Messages : "R"
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Glossary of Java Error Messages : "S"
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Glossary of Java Error Messages : "T"
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Glossary of Java Error Messages : "U"
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Glossary of Java Error Messages : "V"
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Glossary of Java Error Messages : "W"
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Glossary of Java Error Messages : "X"
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Glossary of Java Error Messages : "Y"
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Glossary of Java Error Messages : "Z"
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Beginner's Corner
Beginner's Corner is a series of articles that guide a beginner from the first few steps of learning Java through to being comfortable with working with objects. These articles provide a structured tour of the content found on this Java site.

JavaFX Controls
Find out about how to use the various JavaFX controls

JavaFX Layouts
Learn about the different types of JavaFX layouts

Creating User Interfaces
Let's make sure your Java applications are user friendly! Learn about graphical user interfaces, and how to create them.

Java Syntax
Find out how Java programs are structured, store data, control the flow of your code, and work with objects.

Test Your Java Programming Knowledge
Use these exercises and questions to test your knowledge of Java, and practice your programming skills.

Glossary of Java Error Messages : "A"
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Glossary of Java Error Messages : "B"
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Glossary of Java Error Messages : "C"
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Glossary of Java Error Messages : "D"
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Glossary of Java Error Messages : "E"
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Glossary of Java Error Messages : "F"
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Glossary of Java Error Messages : "G"
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Glossary of Java Error Messages : "H"
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Glossary of Java Error Messages : "I"
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Glossary of Java Error Messages : "J"
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Glossary of Java Error Messages : "K"
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Glossary of Java Error Messages : "L"
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Glossary of Java Error Messages : "M"
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Glossary of Java Error Messages : "Symbols and Numbers"
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Glossary of Java Terms : B
A glossary of Java terms starting with the letter B.

Glossary of Java Terms: C
A glossary of Java terms starting with the letter C.

Glossary of Java Terms : D
A glossary of Java terms starting with the letter D.

Glossary of Java Terms: E
A glossary of Java terms starting with the letter E.

Glossary of Java Terms: F
A glossary of Java terms starting with the letter F.

Glossary of Java Terms: G
A glossary of Java terms starting with the letter G.

Glossary of Java Terms : H
A glossary of Java terms starting with the letter H.

Glossary of Java Terms : I
A glossary of Java terms starting with the letter I.

java.util
The java.util package contains classes that deal with collections, events, date and time, internationalization and various helpful utilities.

Glossary of Java Terms : K
A glossary of Java terms starting with the letter K.

Glossary of Java Terms : L
A glossary of Java terms starting with the letter L.

Glossary of Java Terms : M
A glossary of Java terms starting with the letter M.

NetBeans: NetBeans Articles
NetBeans is a popular integrated development environment made by Sun Microsystems. You'll find articles about NetBeans and how it can help you build Java applications here.

Handling Events
How to handle events generated by graphical components.

Creating Tables
How to make tables for graphical user interfaces.

Tracking Progress
How to show the progress of tasks using graphical components.

Input/Output
Articles on how to handle I/0 in Java.

Handling Exceptions
Learn how to let your programs recover from exceptions.

Working With Databases
Java applications have the ability to talk to most kinds of databases thanks to the Java API. Find out how here.

Beginner Level
These exercises and questions target programmers who are new to Java. They focus on the basic building blocks of Java's syntax e.g., data types, loops, conditions, arrays, methods, objects, and so on.

Java Blogs - Find blogs about Java.
There are some fine blogs in the Java world where useful information can be found and where interesting topics are discussed. Here you will find a growing selection of the finest and most regularly updated.

Tools that help document Java programs or can be used to search the Java API.
Tools that help document Java programs or can be used to search the Java API.

Learning Aids - Interesting Ways to Help You Learn Java
Here you will find websites or programs that help with learning Java.

Glossary of Java Terms : N
A glossary of Java terms starting with the letter N.

Glossary of Java Terms : O
A glossary of Java terms starting with the letter O.

Glossary of Java Terms : P
A glossary of Java terms starting with the letter P.

Glossary of Java Terms: Q
A glossary of Java terms starting with the letter Q.

Glossary of Java Terms: R
A glossary of Java terms starting with the letter R.

Glossary of Java Terms: S
A glossary of Java terms starting with the letter S.

Glossary of Java Terms: T
A glossary of Java terms starting with the letter T.

Glossary of Java Terms : U
A glossary of Java terms starting with the letter U.

Glossary of Java Terms : V
A glossary of Java terms starting with the letter V.

Glossary of Java Terms: X
A glossary of Java terms starting with the letter X.

Glossary of Java Terms: Y
A glossary of Java terms starting with the letter Y.

Images - Free Java Images
Here you'll find free Java images that can be used in applications or on websites.

Book Reviews
Programming books can be quite expensive so it's best to find the right one for you. Here you'll find Java book reviews to help you make the right choices.

Glossary of Java Terms : Symbols and Numbers
A glossary of Java terms starting with a symbol or number.

Object-Oriented Programming
Learn the concepts behind object-oriented programming.

Understanding Data Types
Data types define the values your Java programs can use. Discover what data types Java comes with and how to put them into action.

Web Applications
Take your Java programming onto the Web. Discover how to create Java applets and servlets in this section.

Working With Objects
Learn how to make objects come to life in your Java applications.

NetBeans: Get involved with the NetBeans community
Get involved with the NetBeans community. There are several programs that encourage NetBeans users to help make NetBeans as good as it can be.

Java Conferences: Find out about the Java conferences you can attend and what happened in previous years.
Java conferences are great places to increase your knowledge of Java and find out what's going on in the Java world. You'll also get a chance to meet like-minded developers.

Certifications
Here you can find out about the Jave certifications on offer from Oracle.

Control Flow
A developer need to be able to let the programs they write make decisions. This section looks at the conditional statements and loops that enable a programmer to control flow of the Java code based on the state of an application.

Using Dialog Boxes
Dialog boxes provide an instant interaction with a user. They can provide information or take in data. In this section, the various options for building dialog boxes in Java is covered.

Layout Managers
A good graphical user interface makes sure the components (e.g., buttons, combo boxes) are laid out in the best way for a user to understand and use efficiently. Determining where components are placed within a container is the job of a layout manager. You're find out about the layout managers in the Java API here.

javax.swing
The javax.swing package contains classes for the Swing controls. If you're making a Java application using Swing then you'll be using a lot of the classes in this package.

Counting Rabbits Solution
Can you write a code to display the first 22 numbers in a Fibonacci's sequence? Compare your code to the one found here and find out. Page 2.

Odd Magic Squares in Java - Programming Exercise
Turtles, magic and squares will conspire to test your logic in this exercise.

Odd Magic Squares
Do you know how to create a 5x5 magic square in Java? Check out this code and find out. Page 2.

The Infinite Loop - Solution
Test your Java skills by rewriting this code to eliminate the infinite loop without using a break statement. Page 2.

Doubly-Even Magic Squares Solution
Think you know how to create a doubly-even magic square? Check out this code to find out. Page 2.

Common Runtime Error
How important is capitalization in Java? Check out this common runtime error to find out. Page 2.

What is the Hailstone Sequence?
A clever German mathematician created a simple formula that will produce what is sometimes known as the hailstone sequence. Can you write a program to display that sequence for a certain number?

The Hailstone Sequence
A clever German mathematician created a simple formula that will produce what is sometimes known as the hailstone sequence. Can you write a program to display that sequence for a certain number? Page 2.

Java Hexadecimal Numbering System Definition and Example
Java Hexadecimal is a numbering system with a base of 16. It uses all the numerals 0,1,2,3,4,5,6,7,8,9 as well as the letters A,B,C,D,E,F for each digit of a number.

Java Composition Definition and Example with Code
The term composition takes on different meanings depending on the subject, and in Java it has its own meaning as well.

JDK 7 for Mac OS X
Java.

Discover one of Java's more obscure language features.
Understand the Java generics type witness feature.

How Do I Start Learning Java?
A common question new developer are faced with, is where do I start when faced with learning the Java language? Here are some tips.

Blog


Learning Java: Enhanced for Loop Statement
Learn how Java's enhanced for loop statement can

Java Software Programming Tutorials and Resources
Learn Java through easy to follow tutorials, How-Tos, and helpful tips. All you want to know about Java from the basics to current news from About Guide to Java - Paul Leahy.

Java Error Messages
Error messages are not always easy to decipher. This section aims to help track down the possible causes of the errors you might commonly find whilst compiling or running your Java programs.

IDEs: Integrated Development Environments
IDEs aim to make the life of developers easier by grouping together all the tasks needed for building applications into one environment. Here you'll find information on IDEs that are available to Java programmers.

Tools and Utilities
Useful applications on the Internet for programming with Java.

Java API: Utilizing the Java API
Utilize the core Java API to add useful functionality to your applications. Here you find articles on how to use these handy classes.

Code Resources
These links provide further examples of Java code, and free applets you can use in your webpages.

Programming Exercises for beginning Java developers
Programming Exercises for beginning Java developers to test their knowledge of Java syntax

The Basics
It's not possible to achieve anything with Java until you understand the fundamentals of the programming language. Here you'll find all the basic building blocks brought together to build the foundation needed to become a successful developer.

Reserved Words in Java
Here you will find a list of words that you cannot use as identifiers in a Java program.

Java Syntax: What Is Inheritance? What Is a Superclass?
Learn about object inheritance and how it can be used to create a relationship between objects that share common characteristics.

Static Fields - What Is a Static Constant?
Fields can be shared across all objects of the same type through the use of the static modifier.

Using Multiple Main Classes in Java
Whilst learning Java the best way is to compile and run example code. Using multiple classes within a NetBeans project means you can keep all your code examples in one place and try them out independently of each other.

Java Development on the Mac OS X
Things are a little different for Java developers on Mac OS X. Find out how Java fits in with Apple computers.

Implementation Comments - Java Tutorial
Enhance the readability of your programs by using Java comments.

Change the Directory
Are you ready to start programming in Java? Follow this step-by-step tutorial to learn how to write, compile and run Java programs.

Compile Your Program
Are you ready to start programming in Java? Follow this step-by-step tutorial to learn how to write, compile and run Java programs.

Run the Program
Are you ready to start programming in Java? Follow this step-by-step tutorial to learn how to write, compile and run Java programs.

Save the File
Are you ready to start programming in Java? Follow this step-by-step tutorial to learn how to write, compile and run Java programs.

Creating Your First Java Program: The Java Compiler
Every program you write will have to be compiled before it can be run. In this step of our Java program tutorial, learn about the Java compiler

Let’s Go Through That Again
Are you ready to start programming in Java? Follow this step-by-step tutorial to learn how to write, compile and run Java programs.

How to Use Java Robocode to Operate a Robot
It's time for some robot carnage. Page 2.

JavaFX: The JavaFX Scene Graph
A look at the JavaFX Scene Graph

Getting Started With NetBeans – Hello NetBeans World!
If you're new to programming and want to find out what it's like to use an IDE, this is the guide for you. Learn how to write a simple Hello NetBeans World program using the NetBeans IDE.

Shifting Bits
Can you shift bits right and left? Page 2.

Code Points
Try and discover which characters are represented by the Unicode code points. Page 2.

Java Certifications: Sun Certifications and the Oracle Brand
In 2010 the Java certifications scheme under Sun was rebranded under Oracle. Find out what this means for your current certifications and the certification path you were on.

Data Encapsulation: Object-Oriented Programming Basics
Find out about data encapsulation, the most important concept of object-oriented programming.

A Quick Recap
Follow this step-by-step tutorial to learn how to write, compile and run Java applets.

Write the Java Source Code
Follow this step-by-step tutorial to learn how to write, compile and run Java applets.

Save the File
Follow this step-by-step tutorial to learn how to write, compile and run Java applets.

The Java Compiler
Follow this step-by-step tutorial to learn how to write, compile and run Java applets.

Change the Directory
Follow this step-by-step tutorial to learn how to write, compile and run Java applets.

Building Your First Java Applet: Compiling
Follow this step-by-step tutorial to learn how to write, compile and run Java applets.

Building Your First Java Applet: Creating the HTML File
Follow this step-by-step tutorial to learn how to write, compile and run Java applets. Page 8.

Open the HTML Page
Follow this step-by-step tutorial to learn how to write, compile and run Java applets.

Creating an Instance of an Object in Java
Follow this step-by-step guide to learn how to design and create an object. Page 6.

Write the Java Source Code - Your First Java Program
Are you ready to start programming in Java? Follow this step-by-step tutorial to learn how to write, compile and run Java programs. Page 2.

Create a Simple Window Using JFrame
How to use JFrame to create a simple window for a Java application.

Create the Application Class
How to use JFrame to create a simple window for a Java application.

The Function to Create the JFrame
How to use JFrame to create a simple window for a Java application.

Create a Simple Window - Add a JLabel to the JFrame
How to use JFrame to create a simple window for a Java application. Page 4.

The Application Entry Point
How to use JFrame to create a simple window for a Java application.

Code Checkpoint
How to use JFrame to create a simple window for a Java application.

Save, Compile and Run
How to use JFrame to create a simple window for a Java application.

The Class Declaration
Follow this step-by-step guide to learn how to design and create an object.

Multiple Objects
Follow this step-by-step guide to learn how to design and create an object.

Fields
Follow this step-by-step guide to learn how to design and create an object.

The Constructor Method
Follow this step-by-step guide to learn how to design and create an object.

Adding Methods
Follow this step-by-step guide to learn how to design and create an object.

Miscellaneous Duke Image: Gutenberg Press
Miscellaneous images of Duke. Java. Page 28.

Miscellaneous Duke Image: Hands on Hips
Miscellaneous images of Duke. Java. Page 26.

Miscellaneous Duke Image: Vote
Miscellaneous images of Duke. Java. Page 29.

Miscellaneous Duke Image: Comic Book
Miscellaneous images of Duke. Java. Page 13.

Miscellaneous Duke Image: Cards
Miscellaneous images of Duke. Java. Page 2.

Miscellaneous Duke Image: Breaking Out
Miscellaneous images of Duke. Java. Page 17.

Duke at Play Image: Bullfighter
Images of Duke having some fun. Page 22.

Duke at Play Image: Playing Sax
Images of Duke having some fun. Page 4.

Duke at Play Image: Relaxing in an Armchair
Images of Duke having some fun. Java. Page 24.

Duke on His Travels Image: Brazilian Football Skills
Images of Duke with an international flavor. Page 3.

Duke on His Travels Image: Brazilian Overhead Kick
Images of Duke with an international flavor. Page 4.

Duke on His Travels Image: Brazilian Saxophone
Images of Duke with an international flavor. Page 2.

Duke on His Travels Image: Glass Dragon
Images of Duke with an international flavor. Page 6.

Duke on His Travels Image: Golden Dragon
Images of Duke with an international flavor. Page 8.

Duke on His Travels Image: Green Dragon
Images of Duke with an international flavor. . Page 7.

Duke on His Travels Image: Red Dragon
Images of Duke with an international flavor. Page 10.

Duke on His Travels Image: Scaly Gold Dragon
Images of Duke with an international flavor. Page 9.

Duke on His Travels Image: Yellow Dragon
Images of Duke with an international flavor. Page 5.

Miscellaneous Duke Image: Duke Meeting
Miscellaneous images of Duke. Java. Page 18.

Miscellaneous Duke Image: Duke
Miscellaneous images of Duke. Java. Page 12.

Miscellaneous Duke Image: Eating Donut
Miscellaneous images of Duke. Java. Page 20.

Miscellaneous Duke Image: Glass Fish
Miscellaneous images of Duke. Java. Page 14.

Miscellaneous Duke Image: High Five
Miscellaneous images of Duke. Java. Page 16.

Miscellaneous Duke Image: Java Powered
Miscellaneous images of Duke. Java. Page 23.

Miscellaneous Duke Image: Joker
Miscellaneous images of Duke. Java. Page 5.

Miscellaneous Duke Image: Juggling
Miscellaneous images of Duke. Java. Page 10.

Miscellaneous Duke Image: King
Miscellaneous images of Duke. Java. Page 4.

Miscellaneous Duke Image: Mobile
Miscellaneous images of Duke. Java. Page 21.

Miscellaneous Duke Image: Parade
Miscellaneous images of Duke. Java. Page 19.

Miscellaneous Duke Image: Pencil
Miscellaneous images of Duke.. Java. Page 9.

Miscellaneous Duke Image: Pensive
Miscellaneous images of Duke.. Java. Page 27.

Miscellaneous Duke Image: Plugging In
Miscellaneous images of Duke. Java. Page 22.

Miscellaneous Duke Image: Queen
Miscellaneous images of Duke. Java. Page 3.

Miscellaneous Duke Image: Reading News
Miscellaneous images of Duke. Java. Page 11.

Miscellaneous Duke Image: Running
Miscellaneous images of Duke. Java. Page 24.

Miscellaneous Duke Image: Santa
Miscellaneous images of Duke. Java. Page 6.

Miscellaneous Duke Image: Shooting Gun
Miscellaneous images of Duke. Java. Page 15.

Miscellaneous Duke Image: Swinging
Miscellaneous images of Duke. Java. Page 7.

Miscellaneous Duke Image: Uncle Duke
Miscellaneous images of Duke. Java. Page 8.

Miscellaneous Duke Image: Waving
Miscellaneous images of Duke. Java. Page 25.

Duke at Work Image: Duke With Glasses
Images of Duke at work showing off things to do with Java. Page 13.

Duke at Work Image: Duke at Fork
Images of Duke at work showing off things to do with Java. Page 12.

Duke at Work Image: Duke Learning Curve
Images of Duke at work showing off things to do with Java. Page 11.

Duke at Work Image: Duke Juggling
Images of Duke at work showing off things to do with Java. Page 9.

Duke at Work Image: Duke Packaging
Images of Duke at work showing off things to do with Java. Page 10.

Duke at Work Image: Duke Plumbing
Images of Duke at work showing off things to do with Java. Page 17.

Duke at Work Image: Duke Making More Templates
Images of Duke at work showing off things to do with Java. Page 14.

Duke at Work Image: Duke Threading
Images of Duke at work showing off things to do with Java. Page 15.

Duke at Work Image: Duke With Map
Images of Duke at work showing off things to do with Java. Page 16.

Duke at Work Image: Duke Poster Number Two
Images of Duke at work showing off things to do with Java. Page 3.

Duke at Work Image: Duke Poster Number One
Images of Duke at work showing off things to do with Java. Page 2.

Duke at Work Image: Duke Poster Number Four
Images of Duke at work showing off things to do with Java. Page 5.

Duke at Work Image: Duke Poster Number Three
Images of Duke at work showing off things to do with Java. Page 4.

Duke at Work Image: Duke Football
Images of Duke at work showing off things to do with Java. Page 7.

Duke at Work Image: Duke Poster Number Five
Images of Duke at work showing off things to do with Java. Page 6.

Duke at Work Image: Duke Poster Overview
Images of Duke at work showing off things to do with Java. Page 8.

Duke at Play Image: About to Take Off
Images of Duke having some fun. Page 14.

Duke at Play Image: Boxer
Images of Duke having some fun. Page 2.

Duke at Play Image: Cowboy
Images of Duke having some fun. Page 18.

Duke at Play Image: Dancing Duke
Images of Duke having some fun. Page 17.

Duke at Play Image: Drinking Beer
Images of Duke having some fun. Page 19.

Duke at Play Image: Driving a Mustang
Images of Duke having some fun. Page 15.

Duke at Play Image: Fighter Pilot
Images of Duke having some fun. Page 13.

Duke at Play Image: Gardener
Images of Duke having some fun. Page 9.

Duke at Play Image: Guitar Pro
Images of Duke having some fun. Page 21.

Duke at Play Image: Hugging Another Tree
Images of Duke having some fun. . Page 3.

Duke at Play Image: Hugging a Tree
Images of Duke having some fun. Java. Page 8.

Duke at Play Image: Keepy Uppy
Images of Duke having some fun. Java. Page 5.

Duke at Play Image: Money Topiary
Images of Duke having some fun. Page 23.

Duke at Play Image: One-Armed Bandit
Images of Duke having some fun. Java. Page 11.

Duke at Play Image: Overhead Kick
Images of Duke having some fun. Page 6.

Duke at Play Image: Pirate Duke
Images of Duke having some fun. Page 20.

Duke at Play Image: Segway
Images of Duke having some fun. Page 7.

Duke at Play Image: Skateboard Demon
Images of Duke having some fun. . Page 10.

Duke at Play Image: Spaceman Duke
Images of Duke having some fun. Page 16.

Duke at Play Image: Topiary
Images of Duke having some fun. Page 12.

Duke at Work Image: Duke Kick
Images of Duke at work showing off things to do with Java. Page 20.

Duke at Work Image: Duke Between Tags
Images of Duke at work showing off things to do with Java. Page 18.

Duke at Work Image: Duke Making Templates
Images of Duke at work showing off things to do with Java. Page 19.

Miscellaneous Duke Image: Saying Thanks
Miscellaneous images of Duke. Java.

Duke at Play
These are images of Duke at having some fun.

Duke at Play
These are images of Duke at having some fun.

Duke on His Travels
Images of Duke in different parts of the world.

Miscellaneous Duke Images
A hodgepodge of Duke images.

Miscellaneous Duke Images
A hodgepodge of Duke images.

Miscellaneous Duke Images
A hodgepodge of Duke images.

Duke at Work
Images of Duke at work showing off things to do with Java.

Duke at Work
Images of Duke at work showing off things to do with Java.

Definition for the Java Term: JBoss
JBoss is a free open source application server

Duke on His Travels Image: Saltimbanque
Images of Duke with an international flavor.

Duke at Play Image: Beer Toast
Images of Duke having some fun.

Duke at Work Image: Duke Poster Start
Images of Duke at work showing off things to do with Java.

Glossary of Java Error Messages : "A"
A glossary of Java error messages starting with the letter A.

Tutorials
Throughout the various topics on this site there are tutorials to help you learn Java. To make them easy to find, they are all brought together here.

Career Information
Are you thinking about a career working with Java? Inside this section are career tips, help on getting certified, and advice on securing that Java job.