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Option Description
-b This command ensures backward compatibility with earlier versions of javap.
-bootclasspath This command, followed by a path, specifies the path from which to load the bootstrap classes. Normally these would be classes contained in the /lib/rt.jar archive.
-c This command prints the JVM instructions for the execution of each method. This tells you what the bytecode for each method actually does.
-classpath This command, followed by a user-specified class path, overrides the system CLASSPATH environment variable.
-extdirs This command, followed by a directory, overrides the location the system searches for installed extensions. The default location is /lib/ext.
-help This command prints information about the javap utility.
-Jflag This command passes the specified flag directly to the runtime system.
-l This command displays line and local variables.
-package This command shows only package, protected, and public classes and members. This is the default.
-private This command shows information about all classes and members.
-protected This command displays information about protected and public classes and members only.
-public This command shows information only about public classes and members.
-s This command prints internal type signatures.
-verbose This command prints additional information for each method including stack size, local variable information, and arguments.
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