Until now I've just been programming with java at school, but I also want to try it from home. I know I can compile, document, and run java programs that I have made using the Command Line Prompt because I can do that at school using keywords such as javac, javadoc, and java. For instance, if I made a .java text document called practice.java I can go to my command line prompt and type in javac practice.java to compile it.
How can I utilize this command line prompt at home? When I tried it at home it did not recognize javac, javadoc, or java as a valid command.