How to get total memory in jvm ???

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COMPLETE SOURCE CODE FOR : GetTotalMemoryInJvm.java
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public class GetTotalMemoryInJvm
{
public static void main(String[]args)
{
 //Print total memory in java virtual machine in bytes
 System.out.println("TOTAL MEMORY IN JVM : "+Runtime.getRuntime().totalMemory());
}
}

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JUST COMPILE AND EXECUTE IT
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