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How do you correctly declare a method in a derived class that overrides a virtual method and prevents further overriding?

easy📝 Syntax Q3 of Q15
C Sharp (C#) - Inheritance
How do you correctly declare a method in a derived class that overrides a virtual method and prevents further overriding?
Apublic override sealed void MethodName() { }
Bpublic sealed override void MethodName() { }
Csealed public override void MethodName() { }
Doverride sealed public void MethodName() { }
Step-by-Step Solution
Solution:
  1. Step 1: Understand method modifiers order

    In C#, the correct order is 'public sealed override'.
  2. Step 2: Confirm syntax for sealing an override

    Use 'sealed' before 'override' to prevent further overrides.
  3. Final Answer:

    public sealed override void MethodName() { } -> Option B
  4. Quick Check:

    Modifier order matters; 'sealed' must precede 'override' [OK]
Quick Trick: Use 'sealed override' in this order to seal a method [OK]
Common Mistakes:
MISTAKES
  • Placing 'sealed' after 'override'
  • Omitting 'override' keyword
  • Using 'sealed' without 'override'

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