Abstract Class Polymorphism
This program demonstrates polymorphism with abstract class.
Problem Statement
Write a Java program to show polymorphism using abstract class Shape.
Source Code
| 1 | abstract class Shape { |
| 2 | abstract void draw(); |
| 3 | } |
| 4 | class Circle extends Shape { |
| 5 | void draw(){ System.out.println("Drawing Circle"); } |
| 6 | } |
| 7 | class Rectangle extends Shape { |
| 8 | void draw(){ System.out.println("Drawing Rectangle"); } |
| 9 | } |
| 10 | public class AbstractPolymorphism { |
| 11 | public static void main(String[] args) { |
| 12 | System.out.println("Eduinq Abstract Polymorphism"); |
| 13 | Shape s1=new Circle(); |
| 14 | Shape s2=new Rectangle(); |
| 15 | s1.draw(); s2.draw(); |
| 16 | } |
| 17 | } |
Program Output
Eduinq Abstract Polymorphism Drawing Circle Drawing Rectangle
Explanation
Abstract class defines method signature without implementation. - Subclasses provide their own implementations. - Polymorphism allows superclass reference to point to different subclass objects, executing appropriate method at runtime. - This demonstrates how abstract classes and polymorphism combine to enforce design contracts while enabling flexibility. Conclusion: Shows how abstract classes support polymorphism.