Compute Heap Memory Statistics using Java Runtime Class

This Java Program will compute the maximum Heap memory, available Heap Memory and Used Memory statistics.

public class HeapStatMemory {
 public static void main(String[] args) {
  int mb = 1024 * 1024;
  Runtime runtime = Runtime.getRuntime();
  System.out
    .println("**********Heap Memory statistics [MB]**************");
  // Compute and print used memory
  System.out.println("Used Memory:"
    + (runtime.totalMemory() - runtime.freeMemory()) / mb);
  // Compute and Print free memory
  System.out.println("Free Memory:" + runtime.freeMemory() / mb);
  // Compute and Print total available memory
  System.out.println("Total Memory:" + runtime.totalMemory() / mb);
  // Compute and Print Maximum available memory
  System.out.println("Max Memory:" + runtime.maxMemory() / mb);
  System.out
    .println("***************************************************");
 }
}