What is the sentinel value in the following loop?
Declare Numeric invoiceNum
Declare Numeric senValue
Display "Enter an invoice number or -1 to quit: "
Input invoiceNum
While invoiceNum != -1
[more processing statements]
Display "Enter another invoice number or -1 to quit: "
Input invoiceNum
End While

A) invoiceNum
B) Input
C) senValue
D) -1

Question

What is the sentinel value in the following loop?
Declare Numeric invoiceNum
Declare Numeric senValue
Display "Enter an invoice number or -1 to quit: "
Input invoiceNum
While invoiceNum != -1
[more processing statements]
Display "Enter another invoice number or -1 to quit: "
Input invoiceNum
End While

A) invoiceNum
B) Input
C) senValue
D) -1

Quizplus · Accepted Answer

The sentinel value is -1, as it is used to terminate the loop when the user inputs this specific value.

What Is the Sentinel Value in the Following Loop