Java Language Tutorial => Disassembling and Decompiling

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Syntax

javap [options] <classes>

Parameters

Name	Description
`<classes>`	List of classes to disassemble. Can be in either `package1.package2.Classname` format, or `package1/package2/Classname` format. Do not include the `.class` extension.
`-help`, `--help`, `-?`	Print this usage message
`-version`	Version information
`-v`, `-verbose`	Print additional information
`-l`	Print line number and local variable tables
`-public`	Show only public classes and members
`-protected`	Show protected/public classes and members
`-package`	Show package/protected/public classes and members (default)
`-p`, `-private`	Show all classes and members
`-c`	Disassemble the code
`-s`	Print internal type signatures
`-sysinfo`	Show system info (path, size, date, MD5 hash) of class being processed
`-constants`	Show final constants
`-classpath <path>`	Specify where to find user class files
`-cp <path>`	Specify where to find user class files
`-bootclasspath <path>`	Override location of bootstrap class files

Viewing bytecode with javap

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