How to Open a JNLP File. Oracle's Java plug-in supports Java Network Launch Protocol files, which point to Java applets or applications.

Is a JAR file just a ZIP file? A Java JAR file is really just a ZIP file. Java applications can be made up of hundreds or even thousands of classes, property files and other artifacts. When a Java ...

Java is a cross-platform programming language from Oracle that anyone can use. One thing that you can do with Java is create a text document that you can open in Windows' Notepad program.

How to run a Java program using Command Prompt First things first, you will have to write the code that you want to run and save that as a Java executable file.

In this return to the Open source Java projects series, author Steven Haines introduces TomEE, explains how it differs from Tomcat, and helps you set it up in your development environment.