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Question 126/166
You are developing an application that includes the following code segment. (Line numbers are included for reference only.)
You need to ensure that the application accepts only integer input and prompts the user each time non- integer input is entered.
Which code segment should you add at line 19?
You need to ensure that the application accepts only integer input and prompts the user each time non- integer input is entered.
Which code segment should you add at line 19?
Correct Answer: A
Explanation/Reference:
Explanation:
Int32.TryParse - Converts the string representation of a number to its 32-bit signed integer equivalent. A return value indicates whether the conversion succeeded.
Incorrect Answers:
B, C: These will throwan exception when user enters non-integer value.
D: This is exactly the opposite what we want to achieve.
References: http://msdn.microsoft.com/en-us/library/f02979c7.aspx
Explanation:
Int32.TryParse - Converts the string representation of a number to its 32-bit signed integer equivalent. A return value indicates whether the conversion succeeded.
Incorrect Answers:
B, C: These will throwan exception when user enters non-integer value.
D: This is exactly the opposite what we want to achieve.
References: http://msdn.microsoft.com/en-us/library/f02979c7.aspx
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