자바 - 사용하는 힙 메모리 확인하는 소스

/** * Class: TestMemory * @author: Viral Patel * @description: Prints JVM memory utilization statistics */ public class TestMemory {           public static void main(String [] args) {                   int mb = 1024*1024;                   //Getting the runtime reference from system         Runtime runtime = Runtime.getRuntime();                   System.out.println("##### Heap utilization statistics [MB] #####");                   //Print used memory         System.out.println("Used Memory:"             + (runtime.totalMemory() - runtime.freeMemory()) / mb);           //Print free memory         System.out.println("Free Memory:"             + runtime.freeMemory() / mb);                   //Print total available memory         System.out.println("Total Memory:" + runtime.totalMemory() / mb);           //Print Maximum available memory         System.out.println("Max Memory:" + runtime.maxMemory() / mb);