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Which of the following is the correct way to implement a write only property Length in a Sample class?

class Sample { public int Length { set { Length = value; } } }
class Sample { int len; public int Length { get { return len; } set { len = value; } } }
class Sample { int len; public int Length { WriteOnly set { len = value; } } }
class Sample { int len; public int Length { set { len = value; } } }

Correct Answer: class Sample { int len; public int Length { set { len = value; } } }

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