I am trying to learn Java using the JDK I downloaded from the Sun Site, I got a book and am following tutorials. I use a Windows XP SP1 box at home and user with admin privileges.I begun writing ...

When you've set your CLASSPATH correctly you shouldn't need to use -classpath (-cp). <P>Personally I don't use it, but have made macros to my text editor for compiling and running java code.

Right-click on the project root and select “Properties” Select “Libraries” on the left side and make sure “JDK 1.7” is selected at the Java Platform option.