Question

Write a program to create a class Rectangle with a main() method to declare the variable l and b to initialize the length and breadth of the rectangle. calculate and print the area and perimeter of the rectangle by using the following formulae: - Area = length*breadth Perimeter = 2(length*breadth)​

Answer 1

Answer:

import java.util.Scanner;

class Rectangle

{

int length;

int breadth;

int area;

int perimeter;

void input()

{

Scanner in = new Scanner(System.in);

System.out.print("Enter length of rectangle: ");

length = in.nextInt();

System.out.print("Enter breadth of rectangle: ");

breadth = in.nextInt();

}

void calculate()

{

area = length * breadth;

perimeter = 2 * (length + breadth);

}

void display()

{

System.out.println("Area of Rectangle = " + area);

System.out.println("Perimeter of Rectangle = " + perimeter);

}

public static void main(String args[])

{

Rectangle obj = new Rectangle();

obj.input();

obj.calculate();

obj.display();

}

}