C:\Users\xuzhiyuan>java FirstDemo
Exception in thread "main" java.lang.NoClassDefFoundError: FirstDemo
Caused by: java.lang.ClassNotFoundException: FirstDemo
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: FirstDemo. Program will exit.
各位先帮忙解决了,我没有积分了,以后再送啊。
就是FirstDemo,这是源代码
class FirstDemo
{
public static void main(String[] args)
{
System.out.println("Ha Ha);
}
}
没写错那就只有环境变量的问题了,重新配置环境变量吧.
用dos操作确实比较蛋疼.