Hi all. I've recently started to learn how to code in Java and have made a couple of successful attempts at simple stuff using the Eclipse editor. My programs run nicely in there no problem. When I run > cmd and try to use javac (i.e. javac HelloWorld.java) to compile the program I'm getting an error: 'javac' is not recognized as an internal or external command, operable program or batch file.' Can anyone tell me what I'm missing please? Many thanks in advance, Magoo.