the file that i download is oscilloscope.rar. Inside this rar file, there is only oscilloscope.class and knob.class. May i know where can i download , which is the original source code?  i am currently doing my final year project on a website that introduce the school oscilloscope and this applet is very useful to me. i have some experience with java , and i hope i can get the java file and modify it to introduce more controls of the oscilloscope.  This is the link to the current oscilloscope website of my school  , .

someone please sent the code to my email ,