This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Hi, I was trying to run a demo program viz. DemoGUI Compilation was fine and didn't give any warning or errors while running it gave the following error Exception in thread "main" java.lang.NoClassDefFoundError: DemoGUI (wrong name: org/freehep/j3d/plot/test/DemoGUI) at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$100(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClassInternal(Unknown Source) The location of DemoGui.java and DemoGUI.class is D:\freehep-v1.1\src\org\freehep\j3d\plot\test the variable CLASSPATH=.;D:\jdk1.3.1_07;D:\freehep-v1.1\src package and import stmts of the DemoGUI are as package org.freehep.j3d.plot.test; import org.freehep.j3d.plot.*; import javax.swing.*; import java.awt.*; What could be done to run this prg. Thanks in advance
your source file is called DemoGui.java, yet the class file is DemoGUI.class, is it safe to assume you renamed your source file? whatever your answer tho have a look in those directories, and start by deleting your class file, then rebuild and make sure your class goes to the directory you specified in the package statement
You should also try using the package name along with the class name. For example java org.freehep.j3d.plot.test.DemoGUI Also be sure to use the correct capital letters in the class name. Your problem may be as simple as that, in fact. Layne