Dr. Mark Humphrys

School of Computing. Dublin City University.

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My big idea: Ancient Brain


CA216      CA249      CA318

CA400      CA651      CA668

Java start

Use in DCU (Win and Linux)

Use in DCU (Win)

Use on your own machine    

If you want to install on your own machine:
  1. Download Java Development Kit (JDK)
  2. JDK install instructions
If you are on Windows:
  1. Just run the downloaded EXE to install.
  2. Add this to PATH:
     C:\Program Files\Java\VERSION\bin 

To change PATH on Win

To write a Java program

What to write code in

Any text editor will do, but you may prefer an IDE.
Some of these installed at DCU. Some not.

"Hello World" program

public class Hello 
  public static void main ( String[] args ) 
    System.out.println("Hello World");		// comment	

    for ( int i=0; i < args.length; i++ ) 
      { System.out.println ( args[i] ); }

Java programs


Feeds      w2mind.org      ancientbrain.com

On the Internet since 1987.