How is method overloading implemented in OOP?

Method overloading in object-oriented programming (OOP) is implemented by defining multiple methods within the same class that share the same name but differ in their parameter lists. This allows a class to have different versions of a method that can handle different types or numbers of arguments.

The compiler determines which method to invoke based on the arguments provided in the method call, allowing for more flexible and readable code. For example, consider a method add that can sum two integers, two doubles, or even three integers. All these methods are called add, but their parameters differ, enabling the compiler to select the appropriate version at runtime.

This feature enhances the functionality of a class without requiring method names to be unique, which could lead to more complex code management and reduced clarity. Thus, the implementation of method overloading really focuses on having the same method name with characteristic variations in the parameters, such as type or number, which distinguishes them from one another.