Creating a Simple Java Applet

with Symantic Cafe

1. From the Symantic Cafe main menu, select Project/New.

2. The ProjectExpress dialog box will appear.

Enter a project name (for example, "simple.prj"). Note, first create a directory to hold the project. for bookkeeping purposes. You can do this by selecting the New Directory button. It is recommended that you use the same name for the directory and project. Select Next>.

Set project type. Check option Release and keep the other options shown to create an Applet.

Select Finish. This closes the ProjectExpress dialog and you are ready to work on your new project.

3. In the Cafe desktop you should see three windows: the Project window, the Source window text editor, and the Output window. When you have completed the Project Express you should see the folder simple.prj in the Project window.

4. Write the source code for the Java applet. In the Source window text editor enter the following code (open a new Source window by selecting File/New):

public class simple extends java.applet.Applet {

g.drawString ( "your message", 50,50 );

}

5. When finished, select File/SaveAs and save the code as the file simple.java in your simple project folder. YOUR FILE NAME MUST BE THE SAME AS THE CLASS NAME FOR THE JAVA APPLET. It is case sensitive. Note, select the File menu on the Source window text editor.

6. Add your Java source code file to the project. Select File/Add to Project. You should now see this file listed in the Project window.

7. Create a simple HTML file to view the applet. Select File/New which opens another Source window text editor. Enter the following code and save it as simple.html:

Add this file to the project by selecting File/Add to Project. This file should also appear in the project window.

8. Compile the project. Select Project/Rebuild All. (Note, if you are making changes to an already compiled project, you can just select Build.)

9. The Output window displays any errors that occur in compilation. If everything is OK you should see the message "Successful build."

10. Execute the applet by invoking the applet viewer. Select Project/Execute Program.

11. When the applet runs successfully you are ready to include the compiled version (simple.class) in your web page. Be sure to copy the .class and .java files to your home page directory.

RETURN.

Modified 10-6-98. RSL