How to install Java on your computer To run Java apps, open JAR files or compile some source code into bytecode you’ll need to install Java. To download and install Java on Windows, MacOS or Ubuntu, ...

To clear the Java cache, open the Java control panel, which you can find in the Windows Control Panel or in System Preferences on a Mac.

The Java Native Interface offers a complex and potentially error-prone approach to accessing native code from your Java programs. This month Jeff Friesen introduces JNA: an open source Java ...