Question

What value(s) can be input into this code for the value of number that will cause the code in the loop to execute? Scanner keyboard = new Scanner(System.in); System.out.print("Enter a number: "); int number = keyboard.nextInt(); while (number < 100 && number > 500) { System.out.print("Enter another number: "); number = keyboard.nextInt(); }

Answer 1

Answer:

There is no value of the number variable, for which the loop can be true in any iteration.

Explanation:

• The above loop states the condition that the value should be less than 100 and greater than 500. It is because the loop holds the and condition which gives the true if both conditions will be true.
• The first condition of the while loop states that the value of the number variable is less than the 100.
• The second condition of the while loop state that the value of the number variable is greater than the 500.
• The and condition of the while loop will true if both conditions will true.
• But there is no number which is less than 100 and greater than 500.
• So no number can satisfy the while condition to be true.