在来自cmd的包中运行类 [英] Run class inside a package from cmd

问题描述

你好
我在一个名为 hamzah 的程序包中有一个名为 Hamzah 的类，我尝试从命令行运行它，但始终有 NoClassDefFoundError 该类正确编译，并且.class文件已生成，但没有运行
我尝试执行以下操作:

Hello
i have a class called Hamzah inside a package called hamzah i tried to run it from Command line but always i have NoClassDefFoundError the class compiled correctly and .class file produced but it didn''t run
i try to do the following :

<br />
<C:\Users\h.khammash\Desktop\Studening workspace\TestCmd\src\com\hamzah>javac Hamzah.java>

编译成功

这是要运行的:

C:\Users\h.khammash\Desktop\Studening workspace\TestCmd\src\com\hamzah>java -cp . Hamzah


在这里出错.

Compiled successfully

and this for run :

C:\Users\h.khammash\Desktop\Studening workspace\TestCmd\src\com\hamzah>java -cp . Hamzah


Error here .

推荐答案

如果与Hamzah.class文件位于同一文件夹中，则可以使用以下命令直接调用它:

If you''r in the same folder as the Hamzah.class file, you can invoke it directly using:

java Hamzah

假定Hamzah具有有效的main方法.
假设您的课程在软件包com.hamzah中，请从src目录构建并运行:

This assumes Hamzah has a valid main method.
Assuming your class is in package com.hamzah, build and run from the src directory:

C:\Users\h.khammash\Desktop\Studening workspace\TestCmd\src>javac com\hamzah\Hamzah.java
C:\Users\h.khammash\Desktop\Studening workspace\TestCmd\src>java com.hamzah.Hamzah

尝试从上面的目录进行调用，如下所示:

Try from the directory above and call it like:

C:\Users\h.khammash\Desktop\Studening workspace\TestCmd\src\com>java hamzah.Hamzah
// or
java hamzah/Hamzah

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