New to Java

For some reason my program won't run from the command line. I don't get any error messages, just nothing.

I go into Dos, navigate to C:\Program Files\Java\jdk1.6.0\bin and then I type in javac Echo.java. For about 2 seconds the caption of the Dos window changes from "C:\Windows\system32\cmd.exe" to "C:\Windows\system32\cmd.exe - Echo.java" before going back "C:\Windows\system32\cmd.exe". Nothing else happens.

Yes, I have compiled my program, and yes it should print stuff and ask for user input. I tried running another simple program from the Command Line with the same "result".