/**
 * @Author：GuoYaFeng
 * @Package：PACKAGE_NAME
 * @Project：Demo1019
 * @name：Test04
 * @Date：2023/10/19 23:14
 * @Filename：Test04
 * 悲观锁，没写出来
 */
public class Test11 {
    static int i = 0;
    static Integer a=0;

    public static void main(String[] args) throws Exception{
        Thread[] ts = new Thread[10];
        for (int k = 0; k < ts.length; k++) {
            ts[k] = new Thread(new Runnable() {
                @Override
                public void run() {
                    for (int k = 1; k <= 100000; k++) {
                        if(true){
                            synchronized (""){
                                i++;
                            }
                        }
                        synchronized (a){
                            a=a+1;
                        }
                    }
                }
            });
            ts[k].start();
        }

        for (int k = 0; k < ts.length; k++) {
            ts[k].join();
        }
        System.out.println("10个线程并发执行[i]："+i);
        System.out.println("10个线程并发【加锁】执行[a]："+a);
    }

}