Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

1. The Java compiler: javac. The javac utility is the most important command-line interface tool you will find in the JDK's bin directory. This is the Java compiler, and whether you use Maven, Gradle, ...

JetBrains this spring will offer full support for Java 7 in an upgrade to the company’s IntelliJ Idea IDE, according to the JetBrains IntelliJ Idea blog. IntelliJ IDEA 10.5 will support language ...

Sun Microsystems has released NetBeans 5.5, the latest version of the company’s open-source Java integrated development environment (IDE), aiming to beef up the software’s productivity tools ...