To implement a program that Defining Printers Printing the Output.
Class: A class is a blueprint or a template for creating objects in OOP. It defines the properties (attributes) and behaviors (methods) that objects of the class will possess. Here are some key points about classes:
Attributes: Attributes are variables that store data within a class. They represent the characteristics or properties of objects created from the class.
Methods: Methods are functions defined within a class. They define the behaviors or actions that objects of the class can perform.
Object: An object is an instance of a class. It is a concrete, real-world entity created based on the class blueprint. You can create multiple objects from the same class.
Encapsulation: Encapsulation is one of the four fundamental principles of OOP (the others being inheritance, polymorphism, and abstraction). It is the concept of bundling data (attributes) and the methods that operate on that data (behaviors) into a single unit, which is the class. Encapsulation provides several benefits:
Data Hiding: By defining attributes as private (usually by using naming conventions like _variable_name or using properties), you can control access to them from outside the class. This prevents direct modification of class data and enforces data integrity.
Modularity: Encapsulation promotes modularity by encapsulating related data and methods within a class. This makes code more organized and easier to maintain.
Flexibility: It allows you to change the internal implementation of a class without affecting the code that uses the class. This is known as information hiding.
Sample example is given below:
public class Point{
private int x;
private int y;
private void setX(int xCoord) {
this.x = xCoord;
}
private void setY(int yCoord) {
this.y = yCoord;
}
private int getX() {
return this.x;
}
private int getY() {
return this.y;
}
private void print() {
System.out.println("(" + this.x + "," + this.y+ ")");
}
}
public class Driver {
public static void main(String[]){
Point p = new Point();
p.setX(2);
p.setY(3);
p.print();
}
}:
