Command line path problem...?

Ok, I am only after begining programing in java and hence im starting on HelloWorld. Its not the code that im stuck on though. Its the command line things afterwards. I know how to change the path and stuff and use DIR however this is what the tutorial says:
"The Java tool set consists of a set of command line programs located in the bin directory of your Java installation. For instance, if your Java installation is in C:\j2sdk1.4.2 then the programs you need will be located in C:\j2sdk1.4.2\bin. Make sure you have modified your PATH environment variable to include this bin directory. You can modify your PATH through the control panel or temporarily on the DOS command line (see your operating system help)."
When I try that but replace it with my current version its says this "System cannont find file path" Then if I put program files before that it still doesnt work and no matter what ive tried it doesnt seem to work. Another question also, does the HelloWorld.java file need to be saved in the \bin directory also?
I hope you get back to me, because its kinda hard without someone here to explain it all.
-ARA

When I try that but replace it with my current version its says this "System cannont find file path" Then if I put program files before that it still doesnt work and no matter what ive tried it doesnt seem to work.I'm not a Windows guy, but it sounds like you put the wrong path in the PATH variable. Maybe you installed the JVM in a different location?
Another question also, does the HelloWorld.java file need to be saved in the \bin directory also?NO! You shouldn't put anything in there, or anywhere the directory above it either (the JAVA_HOME directory). Create a separate directory for your own files. Maybe in your home directory, if Windows is supporting the "home directory" concept in any meaningful way.

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