You want to ensure a class property Age can only be set to values between 0 and 120. Which encapsulation technique is best in C#?

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C Sharp (C#) - Properties and Encapsulation

You want to ensure a class property Age can only be set to values between 0 and 120. Which encapsulation technique is best in C#?

AUse a public field and rely on user discipline

BMake the field public and check values before assignment externally

CUse a private field with a public property that validates values in the setter

DDeclare the field as protected without validation

Step-by-Step Solution

Solution:

Step 1: Understand encapsulation for validation
Encapsulation allows controlling how data is accessed and modified.
Step 2: Choose approach that enforces constraints
A private field with a public property setter that validates input ensures only valid values are assigned.
Final Answer:
Use a private field with a public property that validates values in the setter -> Option C
Quick Check:
Properties with validation enforce data integrity [OK]

Quick Trick: Validate data in property setters [OK]

Common Mistakes:

MISTAKES

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