[Solved] Identify the issue in this property setter:private int _score; public int Score { get { return _score; } set { if (value | C Sharp (C#)

C Sharp (C#) - Properties and Encapsulation

Identify the issue in this property setter:

private int _score;
public int Score {
  get { return _score; }
  set {
    if (value < 0) throw new ArgumentOutOfRangeException("Score cannot be negative");
    _score = value;
    _score = value;
  }
}

AThe setter assigns the value to the backing field twice unnecessarily

BThe exception type is incorrect for negative values

CThe getter should also validate the value

DThe backing field should be public instead of private

Step-by-Step Solution

Solution:

Step 1: Review setter code
The setter assigns '_score = value;' two times consecutively.
Step 2: Understand implications
Assigning twice is redundant and unnecessary, but not harmful.
Step 3: Check other options
ArgumentOutOfRangeException is appropriate for negative values; getter does not require validation; backing field should be private.
Final Answer:
The setter assigns the value to the backing field twice unnecessarily -> Option A
Quick Check:
Duplicate assignment is redundant [OK]

Quick Trick: Avoid redundant assignments in setters [OK]

Common Mistakes:

MISTAKES

Confusing exception types
Adding validation in getter
Making backing fields public

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Identify the issue in this property setter:

Step 1: Review setter code

Step 2: Understand implications

Step 3: Check other options

Final Answer:

Quick Check:

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