取得Java虚拟机的启动时间，取得java虚拟机,import java.

取得Java虚拟机的启动时间，取得java虚拟机,import java.

import java.lang.management.ManagementFactory;import java.lang.management.RuntimeMXBean;import java.util.Date;public class JVMStartTime {    public static void main(String[] args) {        // Get JVM's thread system bean        RuntimeMXBean bean = ManagementFactory.getRuntimeMXBean();        // Get start time        long startTime = bean.getStartTime();        // Get start Date        Date startDate = new Date(startTime);               // print values        System.out.println("Start Time = " + startTime);        System.out.println("Start Date = " + startDate);    }}