我装的是 C:\jdk1.6.0_10
java_home  =C:\jdk1.6.0_10
CLASSPATH  =.;C:\jdk1.6.0_10\lib;C:\jdk1.6.0_10\lib\tools.jar
Path       =C:\jdk1.6.0_10\jre\bin


Microsoft Windows XP [版本 5.1.2600]
(C) 版权所有 1985-2001 Microsoft Corp.
C:\Documents and Settings\123>java –version
Exception in thread "main" java.lang.NoClassDefFoundError: –version
Caused by: java.lang.ClassNotFoundException: –version
        at (URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at (URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: 鈥搗ersion.  Program will exit.
这么回事啊