Which java expert is helpful? -- Linux general technology-Linux technology and application information. For details, refer to the following section. # Java hello. java
Exception in thread "main" java. lang. NoClassDefFoundError: hello/java
Caused by: java. lang. ClassNotFoundException: hello. java
At java.net. URLClassLoader $ 1.run( URLClassLoader. java: 217)
At java. security. AccessController. doPrivileged (Native Method)
At java.net. URLClassLoader. findClass (URLClassLoader. java: 205)
At java. lang. ClassLoader. loadClass (ClassLoader. java: 321)
At sun. misc. Launcher $ AppClassLoader. loadClass (Launcher. java: 294)
At java. lang. ClassLoader. loadClass (ClassLoader. java: 266)
Cocould not find the main class: hello. java. Program will exit.
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