I have been getting well on with my java tool.However When I use the javac command.It says

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javac : command not found

It’s just because I just only install the JRE(Java Runtime Environment) and do not install JDK(Java Development KIt).I got the answer going for my fedora

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sudo yum install java-devel

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• 图灵经典:Java程序员修炼之道