取得Java虚拟机的启动时间详解编程语言

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); 
    } 
}