[Solved] What is the error in the following code?interface IRunner { void Execute(); }class Runner : IRunner { public void IRunner.Execute() { Console.WriteLine("Running"); } } | C Sharp (C#)

C Sharp (C#) - Interfaces

What is the error in the following code?

interface IRunner { void Execute(); }
class Runner : IRunner { public void IRunner.Execute() { Console.WriteLine("Running"); } }

AThe class must be declared abstract to implement interface explicitly.

BThe method name should be 'Run' instead of 'Execute'.

CThe interface name should not be prefixed in the method implementation.

DExplicit interface methods cannot have access modifiers like 'public'.

Step-by-Step Solution

Solution:

Step 1: Recall explicit interface implementation rules
Explicit interface methods must not include access modifiers such as 'public'.
Step 2: Check the code
The method is declared as public void IRunner.Execute(), which is invalid.
Step 3: Evaluate options
Explicit interface methods cannot have access modifiers like 'public'. correctly identifies the error. The method name should be 'Run' instead of 'Execute'. is irrelevant to the error. The interface name should not be prefixed in the method implementation. is incorrect because explicit implementation requires interface prefix. The class must be declared abstract to implement interface explicitly. is false; class need not be abstract.
Final Answer:
Explicit interface methods cannot have access modifiers like 'public'. -> Option D
Quick Check:
Explicit methods omit access modifiers [OK]

Quick Trick: Explicit interface methods must not have access modifiers [OK]

Common Mistakes:

MISTAKES

Master "Interfaces" in C Sharp (C#)

9 interactive learning modes - each teaches the same concept differently

More C Sharp (C#) Quizzes

What is the error in the following code?