Question

Answer the following MCqs about Data Structures in Java:

1.If you were to build you own online video player, but you want your costumer to be able to start playing the video before its %100 downloaded. You will probably need to download the video as frames, what data structure would be the best choice to store these frames before you start displaying them to your consumer?

a) Stack b)Queue

2. Consier the following code:

  Stack stack = new Stack();
 stack.push(new Integer(11));
 stack.push(new Integer(13));
 stack.push(new Integer(2));
 stack.peek();
 System.out.println(stack);
 stack.pop();
   System.out.println(stack);

What should the first System.out.println output:

a)[11,13]

b)[11,13,2]

c)[13,2]

4.If you were to build you own online video player, but you want your costumer to be able to start playing the video before its %100 downloaded. You will probably need to download the video as frames, what data structure would be the best choice to store these frames before you start displaying them to your consumer?

a)Stack b)Queue

Answer 1

1. b) Queue

2.

 Stack stack = new Stack();
 stack.push(new Integer(11));
 stack.push(new Integer(13));
 stack.push(new Integer(2));
 stack.peek();  // 2
 System.out.println(stack); // [11, 13, 2]
 stack.pop();
   System.out.println(stack);  // [11, 13]

4.

b)Queue