统计JAVA程序运行时间

import java.net.InetAddress;
import java.net.UnknownHostException;

public class StatisticsTimes {

    public static void main(String[] args) {
        
        long time = System.currentTimeMillis();
        
        InetAddress[] addresses = null;
        try {
            addresses = InetAddress.getAllByName("www.baidu.com");
        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
        
        System.out.println(String.valueOf(System.currentTimeMillis() - time) + "ms");
        
        for(InetAddress address : addresses) {
            
            System.out.println(address);
        }
    }
}