Notify not getting the thread out of wait state

Question

I am trying to use 2 threads. 1 thread prints only odd number and the other thread prints only even number and It has to be an alternative operation.

Eg:

Answer 1

Modified my code based on the answer provided by Lokesh

public class ThreadInteraction {
    public static void main(String[] args) {
        new ThreadInteraction().test();
    }
    private void test() {
        ThreadA ta = new ThreadA();
        Thread t = new Thread(ta);
        t.start();

        try {
            Thread.sleep(1000);
        } catch (InterruptedException e1) {
            e1.printStackTrace();
        }

        for(int i=2;i<=50;){
            System.out.println("Thread2 "+i);
            synchronized (ta) {
                try {
                    ta.notify();    
                    ta.wait();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            i=i+2;
        }
    }
}
class ThreadA implements Runnable{
    @Override
    public void run() {
        for(int i=1;i<50;){
            System.out.println("Thread1 "+i);
            synchronized (this) {
                    try {
                        notify();                           
                        wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
            }
            i=i+2;
        }
    }
}