import java.util.Date;

public class ThreadTestTwo {
    public int a = 0, b = 0,c = 0;

public static void main(String[] args) {
    System.out.println(new Date()+"start");
    for (int i = 0; i < 100000; i++) {
        new ThreadTestTwo().start(i);
        if(i % 100000 == 0){
            System.out.println(i/100000);
        }
    }
    System.out.println(new Date()+"finish");
}

public void start(final int i){
    Thread readThread = new Thread(){
        @Override
        public void run() {
            while (true) {
                if(c == 1){
                    b = a;
//                      System.out.println(i+", set b "+a);
                    break;
                }
//                  System.out.println(i + " run");
            }
        }
    };
    Thread writeThread = new Thread(){
        @Override
        public void run() {
            a = 1;
            c = 1;
        }
    };
    writeThread.setName("mywrite");
    readThread.setName("myread");
    System.out.println(i+" start");
    writeThread.start();
    readThread.start();

    try {
        writeThread.join();
        readThread.join();
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
    System.out.println(i+" end");
    if(b != 1)
        throw new RuntimeException("b = "+b);
}