C:\Program Files\Java\jdk1.6.0_05\CoreJava\v1\v1ch2\Welcome>javac Welcome.java
C:\Program Files\Java\jdk1.6.0_05\CoreJava\v1\v1ch2\Welcome>java Welcome.class
Exception in thread "main" java.lang.NoClassDefFoundError: Welcome/class
Caused by: java.lang.ClassNotFoundException: Welcome.class
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)
C:\Program Files\Java\jdk1.6.0_05\CoreJava\v1\v1ch2\Welcome>java Welcome
Welcome to Core Java
by Cay Horstmann
and Gary Cornell
所以我的问题是,“java”如何找到并执行一个类?为什么不能直接指定类文件?java命令行执行
-1。 OP非常清楚地做到了这一点。 – 2013-10-03 13:41:18