直接上代碼，后面我也有一個問題，關于對象的notifyAll或者notify或者single或者singleAll，喚醒線程是順序喚醒嗎，我這里都是順序輸出了

關于公平與非公平鎖的問題？喚醒是公平的？？？又沒有大佬幫助解答！

1 import java.util.concurrent.LinkedBlockingQueue;2 import java.util.concurrent.ThreadPoolExecutor;3 import java.util.concurrent.TimeUnit;4 import java.util.concurrent.locks.Condition;5 import java.util.concurrent.locks.Lock;6 import java.util.concurrent.locks.ReentrantLock;7 8 /**9 * 使用lock對象，使多個線程循環輸出0-99-0-99 10 */ 11 public class AandBforTOthreadLock { 12 private static Lock lock=new ReentrantLock(); 13 private static Condition single=lock.newCondition(); 14 static class A implements Runnable{ 15 private int i=0; 16 public A(int i){ 17 this.i=i; 18 } 19 @Override 20 public void run() { 21 try { 22 lock.lock(); 23 while (true){ 24 System.out.println(i); 25 single.await(); 26 single.signal(); 27 } 28 }catch (Exception e){ 29 e.printStackTrace(); 30 }finally { 31 lock.unlock(); 32 } 33 } 34 } 35 static class B implements Runnable{ 36 @Override 37 public void run() { 38 try { 39 lock.lock(); 40 while (true){ 41 System.out.println("99"); 42 single.signalAll(); 43 single.await(); 44 } 45 }catch (Exception e){ 46 e.printStackTrace(); 47 }finally { 48 lock.unlock(); 49 } 50 } 51 } 52 53 public static void main(String[] args) throws InterruptedException { 54 ThreadPoolExecutor threadPoolExecutor=new ThreadPoolExecutor(100,100,0L, TimeUnit.MILLISECONDS, 55 new LinkedBlockingQueue<Runnable>()); 56 for (int i=0;i<99;i++){ 57 threadPoolExecutor.execute(new A(i)); 58 Thread.sleep(3l); 59 } 60 Thread.sleep(10000l); 61 threadPoolExecutor.execute(new B()); 62 } 63 64 }
輸出：

……

?

轉載于:https://www.cnblogs.com/qfxydtk/p/8728840.html

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