Find area & perimeter of rectangle in java (with example)

• Given a length and breadth of a rectangle, find the area and perimeter of rectangle.
• Area of rectangle is length * breadth
  • e.g if length is 5 and breadth is 7, then area of rectangle is
    • Area = 5 * 7
    • Area = 35
• Perimeter of rectangle is 2 * (length + breadth)
  • e.g if length is 5 and breadth is 7, then perimeter of rectangle is
    • Perimeter = 2 * (5 + 7)
    • Perimeter = 24

Program: calculate area & perimeter of rectangle in java

package org.learn;

import java.util.Scanner;

public class AreaAndPerimeterOfRectangle {

	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			System.out.printf("1. Enter length of rectangle : ");
			double length = scanner.nextDouble();
			
			System.out.printf("2. Enter breadth of rectangle : ");
			double breadth = scanner.nextDouble();
			
			//Area of rectangle is length * breadth
			double area = length * breadth;
			//Print area up to two precision
			System.out.printf("3. Area of rectangle is : %4.2f",area);
			
			//Perimeter of rectangle is length * breadth
			double perimeter = 2 * (length + breadth);
			//Print area up to two precision
			System.out.printf("\n4. Perimeter of rectangle is : %4.2f",perimeter);
		}
	}
}

Output: area &  aerimeter of rectangle using java is as follows:

1. Enter length of rectangle : 5
2. Enter breadth of rectangle : 7
3. Area of rectangle is : 35.00
4. Perimeter of rectangle is : 24.00

1. Enter length of rectangle : 10
2. Enter breadth of rectangle : 15
3. Area of rectangle is : 150.00
4. Perimeter of rectangle is : 50.00