What is meant by a method with the same name but different parameters in a class or interface?

A method with the same name but different parameters in a class or interface is called method overloading. It allows creating multiple methods with the same name but differing in the type, number, or order of parameters.

Overloading improves the readability and usability of a class, enabling the same method to be called with different sets of arguments.

Example:

public class Calculator
{
    public int Add(int a, int b) {
        return a + b;
    }

    public double Add(double a, double b) {
        return a + b;
    }

    public int Add(int a, int b, int c) {
        return a + b + c;
    }
}

Here, the Add method is overloaded for different types and numbers of parameters.