Java 多线程编程
1.synchronized/wait/notify
1 package javamultithread; 2 3 import java.util.logging.Level; 4 import java.util.logging.Logger; 5 6 /** 7 * 8 * @author Tina 9 */ 10 public class Thread1 implements Runnable { 11 12 private final Object current; 13 private final Object next; 14 private String name; 15 16 public Thread1(String name, Object current, Object next) { 17 this.name = name; 18 this.current = current; 19 this.next = next; 20 } 21 22 @Override 23 public void run() { 24 for (int i = 0; i < 10; i++) { 25 synchronized (current) { 26 synchronized (next) { 27 System.out.print(name); 28 if (name.equalsIgnoreCase("C")) { 29 System.out.println(); 30 } 31 next.notify(); 32 } 33 if (i < 9) { 34 try { 35 current.wait(); 36 } catch (InterruptedException ex) { 37 Logger.getLogger(Thread1.class.getName()).log(Level.SEVERE, null, ex); 38 } 39 } 40 } 41 } 42 } 43 44 public static void main(String[] args) { 45 try { 46 // TODO code application logic here 47 Object o1 = new Object(); 48 Object o2 = new Object(); 49 Object o3 = new Object(); 50 Thread th1 = new Thread(new Thread1("A", o1, o2)); 51 Thread th2 = new Thread(new Thread1("B", o2, o3)); 52 Thread th3 = new Thread(new Thread1("C", o3, o1)); 53 th1.start(); 54 Thread.sleep(10); 55 th2.start(); 56 Thread.sleep(10); 57 th3.start(); 58 Thread.sleep(10); 59 } catch (InterruptedException ex) { 60 Logger.getLogger(JavaMultiThread.class 61 .getName()).log(Level.SEVERE, null, ex); 62 } 63 64 } 65 }
执行结果：
run: ABC ABC ABC ABC ABC ABC ABC ABC ABC ABC 成功构建 (总时间: 0 秒)
