Question

1. The conditon of a "while" loop and a "for" loop are executed at the ____________ of these loops.

2. What will the following code fragment print?

   for (i = 0; i < 4; i++)

       cout << i + 1;

cout << i;

3. What is the result in answer below?

int int1=16;

int int2=5;

int answer=0;

answer = int1 / int2 + (5 * 2);

Answer 1

1) Beginning/ start

2) 12344

3) 13

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Explanation:

1) The for loop and while loop both of them check the condition and then enter the loop. This is different from do-while loop where condition is checked at end of loop.

2) Initially i is 0, so 0+1 = 1 is printed.

In next iteration i is 1 so 2 is printed.

In next iteration i is 2 so 3 is printed.

In next iteration i is 3 so 4 is printed.

In next iteration i is 4 but the loop condition is i<4, so loop breaks.

Outside loop again i i.e. 4 is printed.

So output = 12344

3) answer = int1/int2 + (5 * 2);

answer = 16/5 + (5 * 2);

5*2 is 10.

Since it is integer operation only ( operands are integer) , 16/5 = 3

So answer = 3 + 10 = 13

So the result in answer is 13.

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