Exercise 4: Java Applet - Hello World

For a detailed Java information see The Java Tutorial.

Write a Java applet which prints "Hello World!" in a Netscape browser.

  1. First move into your web directory.
        $ cd www
    
  2. Create a file called HelloWorld.java and type in the program given in class.
        $ vi HelloWorld.java
    
  3. Compile the source file.
        $ javac HelloWorld.java
    
  4. Create the HTML file needed to display the applet.
        $ vi HelloWorld.html
    
    HelloWorld.html will look like the following:
    <HTML>
    <HEAD>
    <TITLE>The Hello World Applet</TITLE>
    </HEAD>
    <BODY>
    <APPLET CODE="HelloWorld.class" WIDTH=150 HEIGHT=25>
    </APPLET>
    </BODY>
    </HTML>
    
  5. To check your results open the HelloWorld.html file in your browser.
Exercise 4 is due Thursday March 2. We will look for the HelloWorld.java, HelloWorld.class, and HelloWorld.html files in your www directory.