I am quite novice towards java programming in linux.To start with I installed j2re1.4.2_03 and also j2sdk1.4.2_04 in FC1(Both from java.sin.com).Now peculiar problems arise. When I type "java -version" it gives 1.3.1( When I type "/usr/java/j2sdk1.4.2_04/bin/java -version" it gives 1.4.2_04. Anyway I can compile any .java file with javac. But when I try to run it with java(any of the above) the gui would not come.(Hello World executes perfectly with System.out.println as also other non-gui programs). I also installed eclipse sdk.It created a directory "eclipse" under /opt.When I cycled to the directory and typed "eclipse" I got messages " warning:cannot determine -os type warning:cannot determine -ws type. warning:cannot determine -arch type. warning:cannot determine -showsplash type. " After a while it gives an error(in a gui): "Error:Java (VM) had to be shut down:Exit Code=1 /usr/bin/java -cp /opt/eclipse/startup.jar org.eclipse.core.launcher.Main -os linux -ws gtk -arch x86 -showsplash /opt/eclipse/eclipse_showsplash 600 " Cannot make any head or tail of it. I also tried to install Netbeans developer using "nbdx2_21.class" file by giving command "java nbdx2_21".What I got was: "Exception in thread "main" java.lang.NoClassDefFoundError: nbdx2_21" Can I get any help?Thanks in advance.
