hi java.lang.System.gc() vs java.lang.Runtime.gc()

> Thanks, but I just want to call Runtime.gc() like

> System.gc() forcefully to invoke finalize() method

> Thanks in advance

The calls are the same. Read the javadoc:

http://java.sun.com/j2se/1.5.0/docs/api/java/lang/System.html#gc()

public static void gc()

Runs the garbage collector.

Calling the gc method suggests that the Java Virtual Machine expend effort toward recycling unused objects in order to make the memory they currently occupy available for quick reuse. When control returns from the method call, the Java Virtual Machine has made a best effort to reclaim space from all discarded objects.

The call System.gc() is effectively equivalent to the call:

Runtime.getRuntime().gc()

kevjavaa at 2007-7-12 18:23:28 >

> Because Runtime.gc() is not a static method.

Given that the system out has "Waiting for Runtime.getRuntime.gc()" I'm guessing he knows.

> > I can call System.gc() to invoke finalize(), but I

> can't with

> > Runtime.gc(), can tell why ?

You will get better responses if you full describe your problem. If it not compiling, or not printing out "Waiting for Runtime.getRuntime.gc()" when you think it should?

If the latter, why do you think you need to call System.gc?

mlka at 2007-7-12 18:23:28 >