Polymorphism
Polymorphism: Definition: Polymorphism allows objects of different classes to be treated as objects of a common superclass. Explanation : Polymorphism enables code to work with objects of various classes through a common interface. Method overloading and overriding facilitate polymorphism. Example: class Shape { void draw() { System. out .println( "Drawing a shape." ); } } class Circle extends Shape { @Override void draw() { System. out .println( "Drawing a circle." ); } } class Square extends Shape { @Override void draw() { System. out .println( "Drawing a square." ); } } public class Main { public static void...