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System.gc() vs Runtime.gc()
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Pankaj Patro
Ranch Hand
Joined: Apr 20, 2005
Posts: 32
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* What is the differance between System.gc() and Runtime.gc() ?
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Thanks & Regards,
Pankaj Patro
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Peter Chase
Ranch Hand
Joined: Oct 30, 2001
Posts: 1970
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System.gc() is just a convenience for Runtime.getRuntime().gc().
However, if you are genuinely a beginner, you should never be calling either of these methods.
99.9% of the time, Java will garbage-collect as appropriate and does not need you to tell it to do so. Calling one of the gc() methods does not force garbage collection to happen, either; it only suggests to the JVM that now might be a good time for some garbage collection.
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Betty Rubble? Well, I would go with Betty... but I'd be thinking of Wilma.<br /> <br />#:^P
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Jesper de Jong
Java Cowboy
Bartender
Joined: Aug 16, 2005
Posts: 12928
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Read the API documentation of both of those methods. The documentation of System.gc() says:
The call System.gc() is effectively equivalent to the call:
Runtime.getRuntime().gc()
So, there is no difference in these two at all.
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Java Beginners FAQ - JavaRanch SCJP FAQ - The Java Tutorial - Java SE 7 API documentation
Scala Notes - My blog about Scala
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