IBM User Guide for Java V7 on Windows > Reference

Command-line options

You can specify the options on the command line while you are starting Java™. They override any relevant environment variables. For example, using -cp <dir1> with the Java command completely overrides setting the environment variable CLASSPATH=<dir2>.

• Specifying command-line options
  Although the command line is the traditional way to specify command-line options, you can pass options to the JVM in other ways.
• General command-line options
  Use these options to print help on assert-related options, set the search path for application classes and resources, print a usage method, identify memory leaks inside the JVM, print the product version and continue, enable verbose output, and print the product version.
• System property command-line options
  Use the system property command-line options to set up your system.
• JVM command-line options
  Use these options to configure your JVM. The options prefixed with -X are nonstandard.
• -XX command-line options
  JVM command-line options that are specified with -XX are not recommended for casual use.
• JIT and AOT command-line options
  Use these JIT and AOT compiler command-line options to control code compilation.
• Garbage Collector command-line options
  Use these Garbage Collector command-line options to control garbage collection.
• Balanced Garbage Collection policy options
  The policy supports a number of command-line options to tune garbage collection (GC) operations.

Parent: Reference

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