java Stack

please answer the following question 1, 2, 3,4, 5

Q1. What is the value returned by peeking on stack ? Stack stack = new Stack(20); for(int i = 0; i < 14; i+=2) stack.push(i); stack.pop(); stack.pop(); stack.pop();	stack.peek() =
Q2. What are the values returned by peeking on each stack? Stack stackOne = new Stack(20); Stack stackTwo = new Stack(20); for(int i =0; i<=5; i++) stackOne.push(i); stackTwo.push(stackOne.pop()); stackTwo.push(stackOne.pop()); stackTwo.push(stackOne.pop());	stackOne.peek() = stackTwo.peek() =
Q3. What is printed out? Stack stack = new Stack(20); int n = 12; while (n > 0) { stack.push(n%2); n = n/2; } int result = ""; while (!stack.isEmpty()) results += stack.pop(); System.out.println(result)	result =
Q4. What elements are in each Stack? Stack stackOne = new Stack(20); Stack stackTwo = new Stack(20); for(int i = 0; i < 7; i++) stackOne.push(i+2); for(int i = 0; i < 10; i++) if(i%4==0) stackTwo.push(stackOne.peek());	stackOne = stackTwo =