Polymorphism is a feature of OOPs. Polymorphism is a feature that allows one interface to be used for a general class of actions. Polymorphism performs a single step in different ways. polymorphism Greek, meaning ―many forms.

1. Welcome to Ducat India
Language | Industrial Training | Digital Marketing | Web Technology | Testing+ | Database
| Networking | Mobile Application | ERP | Graphic | Big Data | Cloud Computing
Apply Now
Call us
70-70-90-50-90
WhatsApp
+91 99-9999-3213
www.ducatindia.com

2. Polymorphism is a feature of OOPs. Polymorphism is a feature that allows one interface to be used for a general
class of actions. Polymorphism performs a single step in different ways. polymorphism Greek, meaning ―many
forms.
In Java, we can specify a general set of stack routines that all share the same names. The concept of polymorphism
is often expressed by the phrase ―one interface, multiple methods. This means that it is possible to design a generic
interface to a group of related activities. This helps reduce complexity by allowing the same interface to specify a
general class of action.
Polymorphism allows us to create a clean, sensible, readable, and resilient code.
Polymorphism has two types in Java: Compile time polymorphism (static binding) and Runtime polymorphism
(dynamic binding). Method overloading is an example of static polymorphism, whereas method overriding is an
example of dynamic polymorphism.
Compile-time Polymorphism
Compile-time Polymorphism is also called “Static polymorphism”. In Compile-time Polymorphism, whatever it
performed is performed at compile time.
Compile-time Polymorphism is implemented by operator overloading and function overloading. In Compile-time
Polymorphism, one of the most common implementations is method overloading.

3. Output
Integer: 10
Double: 20.0
Integer x and y:10 20

4. Output
x: 10
x and y: 10,20
double x: 5.5
O/P : 30.25

5. In above Example, the method demo() is overloaded three times: first method has one int parameter,
second method has two int parameters and third one has a double parameter. Which method is to be
called is determined by the arguments we pass while calling methods. This happens at compile time so this
type of polymorphism is known as compile time polymorphism.
Runtime Polymorphism
Runtime Polymorphism which is also known as dynamic polymorphism. In Java Runtime Polymorphism is
resolve by using “Method overriding”.
In Method overriding, method in parent class can redefine or overridden in child class. When method is
overridden in child class, then the dynamic method dispatch technique can determine the overridden
method call at run time.
Advantages of Runtime Polymorphism
The program is allowed to override methods in rum time polymorphism.
In run time polymorphism it provides classes to define a method with general implementation which its
derivatives can then override and provide the specific implementation.
In run time polymorphism, call of method is resolved in runtime whereas overloading is decided at compile
time. This provides flexibility to programmers.

6. Output
Draw Square
Draw Circle

7. In the above example, parent class have Shape and child class as Square and circle. We are assigning child
object to the parent object. We have overridden draw methods in a child as Square and Circle. JVM decides
at runtime which method it needs to call depending on the object assignment.
Java Runtime Polymorphism Example: Office

8. Output
Developer Salary: 50000
Trainer Salary: 40000
HR Salary: 25000
In the above example, Assume there is an Office in a class that provides a salary method. However, salary
may differ according to their designations. For example, Developer, Trainer, and HR are providing 50000,
40000, and 25000 salary.

9. Thank You!!
Apply Now
Call us
70-70-90-50-90
WhatsApp
+91 99-9999-3213
www.ducatindia.com