Can we have an Interface/Class with same method names and signature with different return type

In the interviews, we will face a question like Can we have an Interface/class with same method names and signature with different return type.

No, we can not have same method name and signature with different type in an Interface/class. we will get compile time error as 'Interface/Class_Name' already defines a member called 'Method_Name' with the same parameter types.

Example:

interface ICalc     {         int Add(int a, int b);         double Add(int a, int b); //Compile Error as 'ICalc' already defines a member called 'Add' with the same parameter types     }     class calc     {         int Add(int a, int b)         {             return a = b;         }         double Add(int a, int b) ////Compile Error as 'calc' already defines a member called 'Add' with the same parameter types         {             return Convert.ToDouble(a + b);         }     }