java线程锁,两个线程同一个方法用不同的锁

同一个方法，两个线程任务,用不同的对象的锁，当其第一个线程释放锁1，第二个线程才能进入?


public class RunTest implements Runnable{
    String tname;
    static int num = 0;
    Object res;
    public RunTest(String tname,Object res) {
        // TODO Auto-generated constructor stub
        this.tname = tname;
        this.res = res;
    }
    
    @Override
    public void run() {
        // TODO Auto-generated method stub
        synchronized (res) {
            while(num<10){
                num ++;
                System.out.println(tname+"->"+num);
                if(num==3){
                        try {
                            res.wait();
                        } catch (InterruptedException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }
                }
            }
            
        }
    }

}

public static void main(String[] args) {
        Object res1 = new Object();
        Object res2 = new Object();
        RunTest t1 = new RunTest("任务1",res1);
        RunTest t2 = new RunTest("任务2",res2);
        new Thread(t1).start();
        try {
            Thread.sleep(500);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        new Thread(t2).start();
    }