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1.JDK命令行工具　　Java开发人员肯定都知道JDK的bin目录有“java.exe”,"javac.exe"这两个命令行工具，但并非所有程序员都了解过JDK的bin目录之中其他命令行程序的作用。每次JDK更新，bin目录下命令行工具的数量和功能总会不知不觉地增强。主要包括用于监控虚拟机和故...

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