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idea 编译的java文件 外面直接运行

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idea 编译的java文件 外面直接运行

比如写个了helloworld，在idea内部build了，然后cd切换到class文件所在目录，直接java运行，报错找不到主类

这种一般怎么解决的？

java文件有“com.xx.xx”这种package声明


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看你的com.xx.xx的名称，在当前路径开始创建文件夹com里面创建xx里面，xx里面再创建xx，把class文件拷贝进去，再回到当前路径java com.xx.xx.类名就可以运行了


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