Using java IDE

hi i coded my program using jcreator and it compiles and runs well. all .java files are placed in a folder.
Now i used another IDE the JBUILDER, i tried to compile the files but then there seems to be a dependency problem. it gives me an error that package Cluster(my java filename) does not exists. the cluster.java file is in the same folder as my compiling file...
what seems to be the prob?

You apparently misconfigured it when you transferred it. Try deleting the "package Cluster;" statement at the top of the source code fille.

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