deloitte java online test questions

1class s1 extends Thread
2{ 
3    public void run() 
4    { 
5        for(int i = 0; i < 3; i++) 
6        { 
7            System.out.println("A"); 
8            System.out.println("B"); 
9        } 
10    } 
11} 
12class Test120 extends Thread 
13{ 
14    public void run() 
15    { 
16        for(int i = 0; i < 3; i++) 
17        { 
18            System.out.println("C"); 
19            System.out.println("D"); 
20        } 
21    } 
22    public static void main(String args[]) 
23        { 
24        s1 t1 = new s1(); 
25        Test120 t2 = new Test120(); 
26        t1.start(); 
27        t2.start(); 
28    } 
29}
30