Case-Based Critical Thinking Questions Case 1 - Human Resources Application
An application used by the Human Resources (HR) department needs to be improved. You need to use various string manipulation properties and methods to ensure all data entered by a user is accurate and stored correctly.
The users of the HR application have entered some employee Social Security numbers (SSNs) with dashes (such as 222-33-4444) and some without dashes (such as 222334444). You need to remove all dashes from any SSN that contains dashes. You will use the ____ method to edit the code so that only numeric characters are stored.
A) Replace
B) Remove
C) Trim
D) Substring

Question

Quizplus · Accepted Answer

The best choice is the Remove method as it specifically removes the dash character from the SSN string. The Replace method may not work as intended if there are other characters in the SSN input that also contain dashes. The Trim and Substring methods are not applicable for removing dashes from the SSN.