Installing J2SE 1.3.1 on Windows 2000

Download

• Go to http://java.sun.com/j2se/1.3/download.html
• Click the download button in the SDK column and next to "Windows (all languages)" in the "Download J2SETM v 1.3.1_05" section.
• Follow the instructions on the Web pages to download j2sdk-1_3_1_05-windows-i586.exe to a working directory on your hard disk. This file is about 32 MB.
• Double click on the file name: j2sdk-1_3_1_05-windows-i586.exe in the working directory in the File Explorer.
• Follow the instruction on the installation window to finish the installation.
• Open a command window to try the java command. If you are getting the following output, your installation was ok: returns with message:

\jdk1.3.1_05\bin\java -version
java version "1.3.1_05"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_05)
Java HotSpot(TM) Client VM (build 1.3.1_05, mixed mode)

First Java Program

Use NotePad to enter the following Java program into a file called Hello.java:

class Hello {
   public static void main(String[] a) {
      System.out.println("Hello world!"); 	
   }
}

Then compile this program in a command window with the javac command:

\jdk1.3.1_05\bin\javac Hello.java

To execute the program, use the java command:

\jdk1.3.1_05\bin\java -cp . Hello
Hello world!

Congratulations, you have successfully entered, compiled and executed your first Java program.