[Solved] Identify the error in this code snippet:abstract class Shape { public abstract double Area(); } class Circle : Shape { public double Area() { return 3.14 * 5 * 5; } } | C Sharp (C#)

C Sharp (C#) - Polymorphism and Abstract Classes

Identify the error in this code snippet:

abstract class Shape {
    public abstract double Area();
}

class Circle : Shape {
    public double Area() {
        return 3.14 * 5 * 5;
    }
}

ACircle must declare Area() as override

BShape cannot have abstract methods

CCircle cannot inherit from Shape

DArea method should return int, not double

Step-by-Step Solution

Solution:

Step 1: Check abstract method override rules
When a class inherits an abstract method, it must override it using the override keyword.
Step 2: Identify missing override keyword
The Circle class defines Area() but misses override, causing a compile error.
Final Answer:
Circle must declare Area() as override -> Option A
Quick Check:
Override keyword required for abstract methods [OK]

Quick Trick: Override abstract methods with 'override' keyword [OK]

Common Mistakes:

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