Polymorphism in Java allows an object to take on multiple forms. There are two types of polymorphism: compile-time polymorphism (method overloading) and runtime polymorphism (method overriding). Method overloading involves methods with the same name but different parameters, while method overriding involves subclasses providing their own implementation of a superclass method. Runtime polymorphism determines which version of a method to call based on the object's actual type at runtime. Abstraction in Java allows hiding implementation details and showing only essential functionality through the use of abstract classes and methods.
Learn the various forms of polymorphism in Java with illustrative examples to explain method overloading(Compile-time polymorphism) and method overriding(Run-time polymorphism)
This is the presentation file about inheritance in java. You can learn details about inheritance and method overriding in inheritance in java. I think it's can help your. Thank you.
Learn the various forms of polymorphism in Java with illustrative examples to explain method overloading(Compile-time polymorphism) and method overriding(Run-time polymorphism)
This is the presentation file about inheritance in java. You can learn details about inheritance and method overriding in inheritance in java. I think it's can help your. Thank you.
This presentation deals with pure object oriented concepts and defines basic principles of OOP's like Encapsulation , polymorphism , Inheritance and Abstraction.
oops concept in java | object oriented programming in javaCPD INDIA
object oriented programming is a key concept for the development of application in windows as well as web based application environment. oops concept maps real world through its concept of classes, objects, inheritance, polymorphism which help in making a robust application.
Java abstract class & abstract methods,Abstract class in java
Abstract classes are classes that contain one or more abstract methods. An abstract method is a method that is declared, but contains no implementation. Abstract classes may not be instantiated, and require subclasses to provide implementations for the abstract methods.
Polymorphism in java, method overloading and method overridingJavaTportal
Polymorphism come from the two Greek words ‘poly’ meaning many and ‘morphs” meaning forms. The ability to exist in different form is called polymorphism. The same variable or method can perform different tasks; the programmer has the advantage of writing flexible code.
This presentation deals with pure object oriented concepts and defines basic principles of OOP's like Encapsulation , polymorphism , Inheritance and Abstraction.
oops concept in java | object oriented programming in javaCPD INDIA
object oriented programming is a key concept for the development of application in windows as well as web based application environment. oops concept maps real world through its concept of classes, objects, inheritance, polymorphism which help in making a robust application.
Java abstract class & abstract methods,Abstract class in java
Abstract classes are classes that contain one or more abstract methods. An abstract method is a method that is declared, but contains no implementation. Abstract classes may not be instantiated, and require subclasses to provide implementations for the abstract methods.
Polymorphism in java, method overloading and method overridingJavaTportal
Polymorphism come from the two Greek words ‘poly’ meaning many and ‘morphs” meaning forms. The ability to exist in different form is called polymorphism. The same variable or method can perform different tasks; the programmer has the advantage of writing flexible code.
Abstraction is a process by which concepts are derived from the usage and classification of literal ("real" or "concrete") concepts.
Abstraction is a concept that acts as a super-categorical noun for all subordinate concepts, and connects any related concepts as a group, field, or category.
Superclasses, and Subclasses, Overriding and Hiding Methods, Polymorphism, Inheritance Hierarchies, Super keyword, Final Classes and Methods, Abstract,
Classes and Methods, Nested classes & Inner Classes,
finalization and garbage collection.
Abstraction in Java: Abstract class and InterfacesJamsher bhanbhro
In my presentation titled "Abstraction in Java," I have discussed the fundamental concept of abstraction in Java programming. The presentation delves into how abstraction is a key principle in object-oriented programming, explaining its role in hiding the complexity of code while exposing only the necessary details. It includes examples and explanations on implementing abstraction in Java, offering a clear understanding for both beginners and intermediate learners. This presentation serves as an educational guide for those interested in enhancing their Java programming skills and understanding the practical applications of abstraction in software development.
Lecture 8 abstract class and interfacemanish kumar
Abstract class and Interface both are used to achieve the concept of abstraction and using the interface we can implement the concept of multiple inheritance in java.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
2. Polymorphism:-
It is the ability of an object to take on many forms.
In java language, polymorphism is essentially considered into two versions.
• Compile time polymorphism (method overloading/ static binding )
• Runtime polymorphism (method overriding/ dynamic binding )
3. Compile time polymorphism (method overloading):-
This is used to write the program in such a way, that flow of control is decided in compile
time itself. It is achieved using method overloading(implicitly).
In method overloading, an object can have two or more methods with same name but with
their method parameters different. These parameters may be different on two bases:
Parameter type: Type of method parameters can be different.
public void num(double a, double b){..}
public void num (float a, float b){..}
public void num (int a, int b){..}
Parameter count: Functions accepting different number of parameters.
EmployeeFactory.create(String firstName, String lastName){...}
EmployeeFactory.create(Integer id, String firstName, String lastName){...}
o Both methods have same name “create” but actual method invoked will be
based on parameters passed in program.
4. Runtime polymorphism (method overriding):-
Feature that allows a subclass or child class to provide a specific implementation of
a method that is already provided by one of its super classes or parent classes.
public class students {
public void study(){
System.out.println(“OOP"); }
}
class Ghazanfar extends students{
public void study(){
System.out.println(“OOP,Discrete"); }
}
class Rafah extends students{
public void study(){
System.out.println(“Report writing"); }
}
Now which study() method will be called?
5. Depends on type of actual instance created on runtime.
public class Demo
{
public static void main(String[] args) {
students a1 = new Ghazanfar();
a1.study();
students a2 = new rafah();
a2.study();
}
}
6. ABSTRACTION:-
Abstraction means hiding the implementation details and showing only the
functionality.
Abstraction is the process of abstraction in Java is used to hide certain details and
only show the essential features of the object.
Abstract keyword
Abstract keyword is used to declare the method or class as abstract.
You have to place the abstract keyword before the method or class name in the
method declaration.
An abstract method contains a method signature, but no method body.
Instead of curly braces an abstract method will have a semi colon ( ; ) at the end.
7. Abstract Class :
A class which contains the abstract keyword in its declaration is known as abstract class.
Syntax:
abstract class <class-name>{}
An abstract class is something which is incomplete and you cannot create instance of
abstract class.
If you want to use it you need to make it complete or concrete by extending it.
A class is called concrete if it does not contain any abstract method and implements
all abstract method inherited from abstract class or interface it has implemented or
extended.
8. Abstract Methods:
If we want a class to contain a particular method but we want the actual
implementation of that method to be determined by child classes, we can declare
the method in the parent class as abstract.
Abstract methods do not have body, they just have prototype(method signature).
Abstract methods must be implemented in the child class (if the class is not
abstract) otherwise program will throw compilation error
Syntax:
abstract return type method name ();
An abstract method in Java doesn't have body, it’s just a declaration. In order to
use abstract method you need to override that method in Subclass.
A method that is declare as abstract and does not have implementation is known
as abstract method.
If you define abstract method than class must be abstract.
9. package program;
//abstract class
abstract class Sum{
//abstract methods
public abstract int SumOfTwo(int n1, int n2);
public abstract int SumOfThree(int n1, int n2, int n3);
//Regular method
public void disp(){ System.out.println("Method of class Sum");
} }
class AbstractDemo extends Sum{
public int SumOfTwo(int num1, int num2){
return num1+num2;
}
public int SumOfThree(int num1, int num2, int num3){
return num1+num2+num3;
}
public static void main(String args[]){
AbstractDemo obj = new AbstractDemo();
System.out.println(obj.SumOfTwo(3, 7));
System.out.println(obj.SumOfThree(4, 3, 19));
obj.disp();
} }
10. package presentation;
//Interface
interface Multiply{
//abstract methods
public abstract int multiplyTwo(int n1, int n2);
int multiplyThree(int n1, int n2, int n3);
}
class AbstractDemo2 implements Multiply{
public int multiplyTwo(int num1, int num2){
return num1*num2; }
public int multiplyThree(int num1, int num2, int num3){
return num1*num2*num3; }
public static void main(String args[]){
AbstractDemo2 obj = new AbstractDemo2();
System.out.println(obj.multiplyTwo(3, 7));
System.out.println(obj.multiplyThree(1, 9, 0)); } }