Easy learning with example program codes

Polymorphism in java

Polymorphism in real world:

Polymorphism means more than one forms. Water can be of in any form solid, liquid or gas.

Polymorphism in programming:

In java polymorphism is a way in which something behaves differently based on its call. Let us take the example of + operator and see the below example.

 * This program is used to show simple example of polymorphism.
 * @author CodesJava
public class PolymorphismExample {
      public static void main(String args[]){
            //+ operator add two numeric values
            System.out.println(20 + 30);
            //+ operator concatenate two strings.
            System.out.println("hello " + "java.");


hello java.

Download this example.

In the above example + operator behaves differently based on type of argument. When arguments are of integer type it acts as additional operator and when arguments are of String type it acts as concatenation operator.

Polymorphic object:

In java an object which can pass two or more IS-A test. All objects in java are polymorphic in nature because they passed IS-A test at least for its own type and Object class type.

Types of polymorphism:

  1. Static/compile time polymorphism (by method overloading).
  2. Dynamic/run time polymorphism (by method overriding).

Next Topic: Method overloading.
Previous Topic: Encapsulation in java.

Related Topics:

OOPs Basics.
Object and Class in Java.
OOPs Principles/Concepts.
Abstraction in java.
Encapsulation in java.
Polymorphism in java.


Core Java Tutorial

Programming language overview.
Overview of Java.
Java features
JVM architecture details.
Java Coding Guidelines.
Some important definitions.
Variable and data types.
Hello world java program.
Core java examples programs.
Important Java Programs.
How to set permanent path in java?
OOPs Basics.
Object and Class in Java.
OOPs Principles/Concepts.
Abstraction in java.
Encapsulation in java.
Polymorphism in java.
Method overloading in java.
Method overriding in java.
Dynamic method dispatch.
Runtime polymorphism.
Association in java.
Inheritance in java.
Aggregation in java.
Command line arguments in java.
Command line argument program in eclipse.
Read input from command line using Scanner.
Java array programs
Java star pattern programs
Java number pattern programs
final in java.
Abstract class in java.
Interface in java.
Custom marker Interface in java.
Constructor in java.
Package in java.
Access modifier in java.
Static import in java.
Package class in java.
this in java.
Instance initialize block.
Anonymous block.
super in java.
Static in java.
final in java.
Java cloning deep and shallow
Shallow vs Clone copy
String handling in java.
String handling programs.
StringBuffer in java.
StringBuilder in java.
Exception Handling Tutorial.
Multithreading Tutoial.
Java input output stream tutorial.
Collections framework in java tutorial.
Collections framework programs.
Java Random class
Java annotations.
Java design principles.
Java 7 features
Java 8 features
Java networking tutorial
Java Reflection tutorial

Industrial Training

We offers Placement Oriented Training on Java, Spring, JSF, Hibernate, PHP, AngularJS, Angular 4, PLSQL, Oracle BI Publisher etc. We also provides Online training, please mail us at


We also provides the Development services for Website Development , Java Development, PHP Development, Android App Development etc. You can contact us on

Copyright © 2019 CodesJava Protection Status SiteMap Reference: Java Wiki