Compile-time polymorphism, also known as method overloading, is a feature of object-oriented programming languages such as Java that allows you to define multiple methods with the same name in the same class. The compiler determines which version of the method to call based on the number, types, and order of the arguments passed to it.

Solving real-life problem using polymorphic hierarchy.

A simple and easy program to understand the concept of runtime polymorphism, compile time polymorpism,overloading, overridding, downcasting, upcasting and Interface.