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How to decompile bytecode files in Java?

王林
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2023-04-22 14:40:081955browse

1. Description

(1) javap, the built-in decompilation tool javap, can decompile bytecode files. javap-help can understand the basic usage of javap.

(2) Enter the command javap-verbose-pMain.class to view the output content.

2. Usage examples

用法: javap <options> <classes>
其中, 可能的选项包括:
  -help  --help  -?        输出此用法消息
  -version                 版本信息
  -v  -verbose             输出附加信息
  -l                       输出行号和本地变量表
  -public                  仅显示公共类和成员
  -protected               显示受保护的/公共类和成员
  -package                 显示程序包/受保护的/公共类
                           和成员 (默认)
  -p  -private             显示所有类和成员
  -c                       对代码进行反汇编
  -s                       输出内部类型签名
  -sysinfo                 显示正在处理的类的
                           系统信息 (路径, 大小, 日期, MD5 散列)
  -constants               显示最终常量
  -classpath <path>        指定查找用户类文件的位置
  -cp <path>               指定查找用户类文件的位置
  -bootclasspath <path>    覆盖引导类文件的位置

What can Java be used for?

Java is mainly used in: 1. web development; 2. Android development; 3 . Client development; 4. Web development; 5. Enterprise-level application development; 6. Java big data development; 7. Game development, etc.

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