Question

how many times does the while loop execute for the given input values of -1 4 0 9? usernum = 3; while (usernum > 0) { // do something // get usernum from input }

Answer 1

The while loop executes based on the value of the usernum variable in the code snippet.

Step-by-step explanation:

The given code snippet shows a while loop that executes as long as the value of usernum is greater than 0. Let's analyze the code with the given input values:

1. Input value: -1
   The loop will not execute because -1 is not greater than 0.
2. Input value: 4
   The loop will execute 4 times because 4 is greater than 0. Each execution of the loop will perform the specified actions inside the loop.
3. Input value: 0
   The loop will not execute because 0 is not greater than 0.
4. Input value: 9
   The loop will execute 9 times because 9 is greater than 0. Each execution of the loop will perform the specified actions inside the loop.

Answer 2

The while loop will execute 3 times for the given input values of -1, 4, and 0.

The while loop executes twice, once for each positive value entered (4 and 0 in this case). The negative value (-1) and the final 9 are never used to check the loop condition, as the loop exits after processing 0.

Therefore, the loop executes a total of **3 times** because the initial value and the first two input values are greater than 0.