if a thread"s wait executes before notify, then the program dies. How can we solve this problem?

public class AaaTest {
    public static void main(String[] args) throws InterruptedException {
        Object obj=new Object();
        Ttt ttt=new Ttt(obj);
        ttt.start();
        synchronized(obj){
            obj.wait();
        }
        System.out.println("wait");
    }
    static class Ttt extends Thread{
        Object obj;
        Ttt(Object obj){
            this.obj=obj;
        }
        public void run() {
            synchronized(obj){
                    obj.notify();
            }
        }
    }
}

is this 100% guaranteed that obj.wait (); will be executed before obj.notify ();?