玩转Java并发工具精通JUC成为并发多面手【15章完整版】 笔记汇总
对Java并发常见的工具类进行从使用到原理的详解,
包括CAS+AQS+ThreadLocal+ConcurrentHashMap+线程池+各种锁+并发综合实战项目
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提取码:9voy  
失效+\/❤:cowcow2100
package cas;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicIntegerArray;
/**
 * 描述:     模拟CAS操作,等价代码
 */
public class TwoThreadsCompetition implements Runnable {
    private volatile int value;
    public synchronized int compareAndSwap(int expectedValue, int newValue) {
        int oldValue = value;
        if (oldValue == expectedValue) {
            value = newValue;
        }
        return oldValue;
    }
    public static void main(String[] args) throws InterruptedException {
        TwoThreadsCompetition r = new TwoThreadsCompetition();
        r.value = 0;
        Thread t1 = new Thread(r,"Thread 1");
        Thread t2 = new Thread(r,"Thread 2");
        t1.start();
        t2.start();
        t1.join();
        t2.join();
        System.out.println(r.value);
    }
    
    public void run() {
        compareAndSwap(0, 1);
    }
}package cas;
/**
 * 描述:     模拟CAS操作,等价代码
 */
public class SimulatedCAS {
    private volatile int value;
    public synchronized int compareAndSwap(int expectedValue, int newValue) {
        int oldValue = value;
        if (oldValue == expectedValue) {
            value = newValue;
        }
        return oldValue;
    }
}

下载: Downlod
提取码:9voy
失效+\/❤:cowcow2100








