1 /** 2 *homework0928 3 *@author:kai li 4 */ 5 package com.kai.li.homework0928; 6 import java.util.stream.IntStream; 7 /** 8 *following class is client 9 */ 10 public class HomeWork0928{ 11 12 public static void main(String[] args)throws Exception{ 13 14 /** 15 *question one and two 16 */ 17 18 Runnable runnable1=()->{ 19 long timeStart=System.currentTimeMillis(); 20 IntStream.range(1,101) 21 .mapToObj(i->"洛阳"+i) 22 .forEach(System.out::println); 23 long time1=System.currentTimeMillis()-timeStart; 24 System.out.println(time1); 25 }; 26 Runnable runnable2=()->{ 27 long timeStart=System.currentTimeMillis(); 28 IntStream.range(1,101) 29 .mapToObj(i->"长安"+i) 30 .forEach(System.out::println); 31 long time2=System.currentTimeMillis()-timeStart; 32 System.out.println(time2); 33 }; 34 Runnable runnable3=()->{ 35 IntStream.range(1,101) 36 .mapToObj(i->"runnable3:燕京"+i) 37 .forEach(System.out::println); 38 }; 39 Thread thread1=new Thread(runnable1); 40 Thread thread2=new Thread(runnable2); 41 Thread thread3=new Thread(runnable3); 42 thread1.start(); 43 thread2.start(); 44 thread3.start(); 45 46 IntStream.range(1,101) 47 .mapToObj(i->"main:开封府"+i) 48 .forEach(System.out::println); 49 50 } 51 }