OOP with JAVA

 Object-oriented programming (OOP) is a programming paradigm that is based on the concept of "objects", which can contain data and code that manipulates that data. In Java, a class is a template for creating objects, and an object is an instance of a class.

One of the key features of OOP is inheritance, which allows a class to inherit properties and methods from a parent class. This allows for code reuse and makes it easier to create and maintain complex programs.

Another important feature of OOP is polymorphism, which allows objects of different classes to be treated as a single type. This allows for more flexible and modular code, as well as easier code maintenance.

Overall, OOP is a popular programming paradigm because it helps programmers design and organize code in a logical and intuitive way, which can make it easier to understand and maintain.

Some JAVA programs for beginners:

WAP to Print "Hello, World!" in JAVA

public class HelloWorld { public static void main(String[] args) { System.out.println("Hello, World!"); } }

WAP to add two numbers in JAVA

public class AddNumbers { public static void main(String[] args) { // Declare two variables to hold the numbers int a = 10; int b = 20; // Calculate the sum of the two numbers int sum = a + b; // Print the result System.out.println("The sum of " + a + " and " + b + " is " + sum); } }

WAP to get input from user in JAVA

import java.util.Scanner; public class GetInput { public static void main(String[] args) { // Create a Scanner object to read input from the keyboard Scanner keyboard = new Scanner(System.in); // Prompt the user to enter their name System.out.print("Enter your name: "); // Read the user's name and store it in a variable String name = keyboard.nextLine(); // Print a message using the user's name System.out.println("Hello, " + name + "!"); } }