THE PACKAGE JAVA.LANG

java.lang.System

20.18

The call

System.exit(n)

 is effectively equivalent to the call:

Runtime.getRuntime().exit(n)

For a more complete description, see the

exit

 method of class

Runtime

( 20.16.2).

20.18.12

public static void gc()

Calling this method suggests that the Java Virtual Machine expend effort toward

recycling discarded objects in order to make the memory they currently occupy

available for quick reuse. When control returns from the method call, the Java Vir 

tual Machine has made a best effort to recycle all discarded objects.

The call

System.gc()

 is effectively equivalent to the call:

Runtime.getRuntime().gc()

For a more complete description, see the

gc

 method of class

Runtime

 ( 20.16.9).

20.18.13

public static void runFinalization()

Calling this method suggests that the Java Virtual Machine expend effort toward

running the finalization methods of objects that have been found to be discarded

but whose finalization methods have not yet been run. When control returns from

the method call, the Java Virtual Machine has made a best effort to complete all

outstanding finalizations.

The call

System.runFinalization()

 is effectively equivalent to the call:

Runtime.getRuntime().runFinalization()

For a more complete description, see the

runFinalization

 method of class

Runtime

 ( 20.16.10).

20.18.14

public static void load(String filename)

throws SecurityException, UnsatisfiedLinkError

This method loads a code file with the specified file name from the local file sys 

tem.

The call

System.load(name)

 is effectively equivalent to the call:

Runtime.getRuntime().load(name)

For a more complete description, see the

load

 method of class

Runtime

( 20.16.13).

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