Memory Allocation of JVM

While googling i found the below information which i want to share it here.

The follwoing code is to print Total,Free and Max memory allocated to JVM. it differs depends on the Java Environment.
Please have a look -


public class Memory {
/**
* @param args
*/
public static void main(String[] args) {
System.out.println("The Memory Allocation to JVM ");
long totalMemory = ((Runtime.getRuntime().totalMemory()/1024)/1024);
long freeMemory = ((Runtime.getRuntime().freeMemory()/1024)/1024);
long maxMemory = ((Runtime.getRuntime().maxMemory()/1024)/1024);
System.out.println("Total Memory::"+totalMemory+"MB");
System.out.println("Free Memory::"+freeMemory+"MB");
System.out.println("Max Memory::"+maxMemory+"MB");
}
}