[Solved] Find the problem in this code:public class Employee { public string Id { get; init; } } var emp = new Employee(); emp.Id = "E123"; emp.Id = "E456"; | C Sharp (C#)

C Sharp (C#) - Properties and Encapsulation

Find the problem in this code:

public class Employee {
    public string Id { get; init; }
}

var emp = new Employee();
emp.Id = "E123";
emp.Id = "E456";

AProperty Id must be readonly to prevent changes.

BCannot assign to 'Id' after object creation; second assignment causes error.

CMultiple assignments to init-only property are allowed.

DNo error; code works as expected.

Step-by-Step Solution

Solution:

Step 1: Recall init-only setter rules
Init-only properties can only be assigned once during initialization.
Step 2: Analyze assignments
First assignment after creation is invalid, causing compile error; second assignment is unreachable.
Final Answer:
Cannot assign to 'Id' after object creation; second assignment causes error. -> Option B
Quick Check:
Init-only disallows assignments after creation [OK]

Quick Trick: Init-only properties accept only one assignment during creation [OK]

Common Mistakes:

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