2 Replies Latest reply: Feb 21, 2013 5:30 AM by PhHein RSS

    MyEclipse configuration jdk1.7 run-time error

    992480
      My operating system is: fedora 18/32 bit
      MyEclipse version is: 10
      1. First I uninstall the system comes with: open - jdk1.6 [forced discharge]
      2. Then from oracle website and download the latest version of the jdk1.7
      3. I am in terminal execution javac, and Java compiler take package statement Java files can be normal operation.
      4. When I will jdk1.7 [local system, not MyEclipse own] attached to the MyEclipse and no error, when I was in MyEclipse inside implementation class, tip: could not find the main class or unable to load.
      Question:
      Please inform me about how to install your own MyEclipse additional the JDK. Or how to repair this problem? thank you
      The Java file is as follows:
      package com.w1520.test
      
      public class Test{
      public static void main (String []args){
                  System.out.println("Hello World");//
      }
      
      
      }
      Exception:
      
      
      Exception in thread "main" java.lang.NoClassDefFoundError: JavaDemo (wrong name: com/w1520/JavaDemo/JavaDemo)
          at java.lang.ClassLoader.defineClass1(Native Method)
          at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
          at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
          at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
          at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
          at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
          at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
          at java.security.AccessController.doPrivileged(Native Method)
          at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
          at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
          at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
      Edited by: 989477 on 2013-2-21 上午3:15