Which statement is correct about the execution of the loop in the following code fragment?
Double num;
Int incr = 0;
Scanner reader = new Scanner(System.in);
Do
{
Incr = incr + 1;
System.out.println("Please enter a number (0 when done): ");
Num = reader.nextDouble();
}
While (num != 0);
System.out.println("" + incr);
A) The loop will execute only when 0 is entered.
B) The execution of the loop is independent of user input.
C) The program prints the count of positive inputs.
D) The loop will execute at least once even if the user has entered the sentinel value.

Question

Quizplus · Accepted Answer

The loop will execute at least once because the condition is checked at the end of the loop. If the user enters the sentinel value (0) as the first input, the loop will still execute once before terminating. The variable incr keeps track of the number of inputs, so the program will print the count of inputs, including the sentinel value.

Which Statement Is Correct About the Execution of the Loop