On Wednesday 17 March 2004 12:52 am, Alexander Strube wrote: > Em Ter, 2004-03-16 às 15:53, Kaustubh Ghosh escreveu: > > Hello Kaustubh, > > > 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). > > You have too much java for only one system :-) > Go to /usr/java and take a look about what you have in there. I have a java interpreter installed. > > Remove, using rpm (if you installed that way) the olders java machines. java -version gives: java version "1.3.1" jdkgcj 0.2.3 (http://www.arklinux.org/projects/jdkgcj) gcj (GCC) 3.3.2 20031022 (Red Hat Linux 3.3.2-1) Copyright (C) 2003 Free Software Foundation, Inc. Seems to be a part of gcc.How can I remove it? > Keep only j2sdk1.4.2. The others are not necessary. > > > 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. > > The simplest way is taking out the java path from your environment > variables and symlinking the /usr/java/whatever into /opt/eclipse/jre How can I do so?Please give your advice considering me a novice.Thanks.
