Lab 2

1. Look at my version of the LightAppletV1Demo.html
2. Save versions of each of the listed java source files in your public-html/classes/csc241 directory
3. Save the LightAppletV1Demo.html file itself in your public-html directory
   • Edit the html file so that all of the URLS and the codebase refer to your base URL (probably ``www.oswego.edu/~loginname'').
4. Compile the java files. Usually, the easiest and best way to compile is from within emacs. For example, when editing java files hit the F6 key, then backspace over the prompt saying ``make -k'' and replace with, in this case, ``javac Light*.java''
5. From a shell window, type appletviewer LightAppletV1Demo.html
   • You will see that there is an error leading to a null pointer exception. (One of the source files is not actually the same as the ones that produce the running version.)
   • Track down the error (hint: look in LightSwitch), fix it, recompile, and rerun the appletviewer. Repeat as necessary until it works.
6. When the applet works:
   • From your public-html directory, type
     chmod og+r LightAppletV1Demo.html
   • From your public-html/classes/csc241 directory, type
     chmod og+r *.class
   • Edit your home page (or somewhere easily and obviously accessible from your home page) to place a link to your LightAppletV1Demo.html
   • Check that it is accessible and works from netscape.