Applications and Applets are the most common Java programs. like HotJava browser, Applications are stand-alone programs. Applets are similar to applications, but they adhere to some sets of conventions which allow them run within a browser which is Java-compatible.

By following the steps given in the page below. you can do create and also use a standalone Java application.

Using Java compiler compile the source file. If the compilation succeeds, then the compiler creates a file called AppHelloWorld.class. If compilation fails, make sure what you have typed in and what name you have given.

Using the Java interpreter run the program. You will see "Hello World!" displayed on your standard output screen.

By following the steps given here, you can create and use applet. When you have followed all the steps, your directory/folder structure should look something like a tree as shown here:

Create a directory that can hold your HTML pages. and do this only if you have not created any.
note: If you want to reload the applet do NOT invoke the hotjava (or any other applet viewer) from the HTML directory. Because of the way the class loader do work, an applet cannot be reloaded (for example, after making changes to its code) when you invoke applet viewer from the directory which is having the applet's compiled code.

Create a file named HelloWorld.java in the HTML directory with the Java code shown here:

Compile your source file using Java compiler. If the compilation succeeds, then compiler creates a file called HelloWorld.class. If compilation do fails, make sure you typed in and have named the code exactly as shown above.

Create an HTMl file Hello.html containing the following text in your HTML directory:

Load the new HTML file into HotJava by entering the file's URL in the Document URL field near to the top of the HotJava window, as shown below:

Once the you successfully completed these steps, you should get the following in the HotJava page that comes up: