标签：ram class 结果 import java name 简单 sys lan
某天，我同学发给我这样一道题。看着还是挺简单的，我当时 就想到了线程等待。
使用AutoResetEvent类来两个线程互相等待，互相通知
1 class Program 2 { 3 static AutoResetEvent autoResetEvent1 = new AutoResetEvent(false); 4 static AutoResetEvent autoResetEvent2 = new AutoResetEvent(false); 5 6 static void Main(string[] args) 7 { 8 new Thread(Print1).Start(); 9 new Thread(Print2).Start(); 10 } 11 12 static void Print1() 13 { 14 for (int i = 1; i < 100; i+=2) 15 { 16 Console.WriteLine(i.ToString() + " at thread id: " + System.Threading.Thread.CurrentThread.ManagedThreadId.ToString()); 17 autoResetEvent1.Set(); 18 autoResetEvent2.WaitOne(); 19 } 20 } 21 22 static void Print2() 23 { 24 for (int i = 2; i < 100; i+=2) 25 { 26 autoResetEvent1.WaitOne(); 27 Console.WriteLine(i.ToString() + " at thread id: " + System.Threading.Thread.CurrentThread.ManagedThreadId.ToString()); 28 autoResetEvent2.Set(); 29 } 30 } 31 }
事实证明，这个方法是可行的。原理就是线程2等待线程1事件的发生，线程1等待线程2事件的发生。因为线程1是先跑起来的，就保证了这样一种操作的可行性。
最后运行结果如下：
但个人觉得不够理想。目前还在学习阶段，也说不起为啥不理想，可能 就是单纯的认为吧。
最后请教了同学，看他的做法。他给出的java代码如下
1 import java.util.concurrent.atomic.AtomicInteger; 2 3 public class Exeaple { 4 5 private static AtomicInteger aInt = new AtomicInteger(0); 6 7 public static void main(String[] args) { 8 Thread1 thread1 = new Thread1("thread - 1"); 9 Thread2 thread2 = new Thread2("thread - 2"); 10 thread2.start(); 11 thread1.start(); 12 } 13 14 static class Thread1 extends Thread { 15 private String threadName; 16 public Thread1(String threadName) { 17 this.threadName = threadName; 18 } 19 @Override 20 public void run() { 21 while (aInt.get() <= 20) { 22 if (aInt.get() % 2 == 1) { 23 System.out.println(threadName + ":" + aInt.get()); 24 aInt.incrementAndGet(); 25 } 26 } 27 } 28 } 29 30 static class Thread2 extends Thread { 31 private String threadName; 32 public Thread2(String threadName) { 33 this.threadName = threadName; 34 } 35 @Override 36 public void run() { 37 while (aInt.get() <= 20) { 38 if (aInt.get() % 2 == 0) { 39 System.out.println(threadName + ":" + aInt.get()); 40 aInt.incrementAndGet(); 41 } 42 } 43 } 44 } 45 46 }
标签：ram class 结果 import java name 简单 sys lan
原文地址：https://www.cnblogs.com/zhaotianff/p/10649700.html
