[Solved] Examine this property setter:private string _title; public string Title { get => _title; set { if (string.... } }What happens if the setter is called with an empty string? | C Sharp (C#)

C Sharp (C#) - Properties and Encapsulation

Examine this property setter:

private string _title;
public string Title {
  get => _title;
  set {
    if (string.IsNullOrWhiteSpace(value))
      throw new ArgumentException("Title cannot be empty");
    _title = value;
  }
}

What happens if the setter is called with an empty string?

AThe setter ignores the empty string and leaves _title unchanged

BThe empty string is assigned to _title

CAn ArgumentException is thrown preventing assignment

DThe setter assigns null to _title

Step-by-Step Solution

Solution:

Step 1: Analyze validation condition
The setter checks if the value is null, empty, or whitespace and throws an exception.
Step 2: Understand behavior on empty string
Empty string triggers the condition, so an ArgumentException is thrown.
Step 3: Confirm assignment
Since exception is thrown, assignment does not occur.
Final Answer:
An ArgumentException is thrown preventing assignment -> Option C
Quick Check:
Empty input triggers exception [OK]

Quick Trick: Empty or whitespace input throws exception [OK]

Common Mistakes:

MISTAKES

Assuming empty string is assigned
Thinking setter ignores invalid input silently
Confusing null and empty string handling

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Examine this property setter:

Step 1: Analyze validation condition

Step 2: Understand behavior on empty string

Step 3: Confirm assignment

Final Answer:

Quick Check:

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