Getting Java for Free

In this lesson, we will suggest ways to obtain Java without charge.

We'll cover the following

The following list provides a brief overview of several Java compilers and integrated development environments (IDEs) that you can obtain and use without charge. Many other excellent IDEs exist.

Java SE Development Kit (JDK)

The JDK includes the Java Runtime Environment (JRE) and command-line tools that you can use to write applications and applets. It is available at: www.oracle.com/java/.

BlueJ

BlueJ is an IDE developed specifically for beginners but is preferred by many developers. It is available at: https://www.bluej.org

Eclipse

Eclipse is an open-source IDE for professional developers available in desktop and cloud versions at: www.eclipse.org

NetBeans

NetBeans is another open-source IDE for professional developers that is available at: netbeans.org.

IntelliJ IDEA

IntelliJ IDEA is an IDE that is available in either open source or commercial forms at: www.jetbrains.com/idea/.

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A First Look at Java

Arithmetic Expressions

Debugging Interlude—The Errors Programmers Make

Using Classes and Objects

Class Definitions—The Fundamentals

Debugging Interlude—Common Mistakes with Classes

Decisions

Class Definitions—More Details

Multiway Decisions

Debugging Interlude—Avoiding Mistakes; Finding Mistakes

Repetition

Repetition Continued

Debugging Interlude—Debugging Loops

Arrays

An Array-Based Data Structure

Debugging Interlude—Debugging Arrays

Glossary

Appendixes

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