Java

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Revision as of 11:43, 3 March 2014 by Brb (talk | contribs) (→‎Swing)
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Install openjdk

See http://openjdk.java.net/install/. On Ubuntu, I can use

sudo apt-get install openjdk-7-jdk

Some projects written in Java

  • FastQC The code uses Java 2D graphics APIs in awt like BasicStroke, Color, Dimension, Graphics, Graphics2D, RenderingHints and javax.swing.JPanel. It also uses java.util.Vector.

Tutorial

Compile a simple Java program

javac Example.java # generate Example.class; bytecode version of the program
java Example   # run bytecode in Java Virtual Machine

Get a hello world program from http://docs.oracle.com/javase/tutorial/getStarted/cupojava/unix.html.

Swing

For example, create a new subdirectory 'start' and put HelloWorldSwing.java there. Then we can build and run the swing program by

javac start/HelloWorldSwing.java # Or javac HelloWorldSwing.java if we are in start directory
java start.HelloWorldSwing