LOOP

Which loop is guaranteed to execute at least once?

• A) for loop

• B) while loop

• C) do-while loop

• Enhanced for loop

What is the output of the following WHILE loop?

int x = 5;

while (x > 0){

  System.out.print(x + " ");

  x--

}

• A) 5 4 3 2 1 0

• B)  5 4 3 2 1

• C) 4 3 2 1 0

• D) Infinite loop

What is the main difference between a while loop and a do-while loop?

• • A) while checks the condition before execution; do-while checks after.

• • B) while runs at least once; do-while may not run at all.

• • C) do-while is faster than while.

• • D) There is no difference.

How many times will this loop execute?

int i = 5; while (i < 5) { System.out.println("Hello"); i++; }

• • A) 0

• • B) 1

• • C) 5

• • D) Infinite

What happens if the condition in a while loop is always true?

• • A) The loop runs once.

• • B) The loop runs a finite number of times.

• • C) The loop becomes infinite.

• • D) Compilation error.

What is the output of this code?

int x = 1; do { System.out.print(x + " "); x++; } while (x <= 3);

• • A) 1 2 3

• • B) 1 2

• • C) 2 3

• • D) Infinite loop

Which loop is this an example of?

int i = 0; do { System.out.println(i); i++; } while (i < 5);

• • A) for loop

• B) do-while loop

• C) while loop

• • D) if-else loop

What is the output?

int num = 10; while (num > 0) { System.out.print(num + " "); num -= 2; }

• A) Infinite loop

• B) 8 6 4 2

• C) 10 8 6 4 2 0

• D) 10 8 6 4 2

What is the output?

int i = 1; while (i <= 5) { if (i == 3) { break; } System.out.print(i + " "); i++; }

• • A) 1 2 3

• • B) 1 2

• • C) 1 2 3 4 5

• • D) 3

How many times will "Hello" be printed?

int count = 0; do { System.out.println("Hello"); count++; } while (count < 0);

• • A) 0

• • B) 10

• • C) Infinite

• D) 1