Configuring JRE & SDK
Posted on 2004-04-05
A few newbie/install/configure questions
I'm stepping through a book on OO programming that's going to use Java. The sample code is written to 1.3. The install I've just finished shows 1.4.2. Should I expect enough compatibility problems that I should uninstall and start over with 1.3? (my primary goal isn't command of Java itself so I can live with a few flakes here and there.)
Actually, after finishing the orginal JRE install my browser still didn't show the test applet and went into an auto-install routine ... in my Add Remove Programs (running under XP) I see J2 Runtime SE v.1.4.2 _and_ 1.4.2_04. Should I remove one?
I've also installed Java 2 SKD 1.4.2 with NetBeans and that seems to be working correctly. I can compile a 'HelloWorld' from there and then run that from the command line. My most immediate problem is that I can't compile from the command line. The book says to simply enter 'javac HelloWorld' but that returns 'javac: invalid flag: HelloWorld'.
I have tried various settings with classpath including moving the command line window to the same dir as HelloWorld.java without getting anything else.