- Write a program in Java to take length and breadth of a rectangle as input from user and calculate area and perimeter of rectangle.

To **calculate the perimeter and area of rectangle**, we need the dimensions of two adjacent sides(length and width) of a rectangle. The **area of a rectangle** is the amount of two-dimensional space inside the boundary on rectangle. The **perimeter of a rectangle** is the linear distance around the boundary of the rectangle.

**Area of Rectangle**

To find the area of rectangle we multiply it's Length and Width.

**Area of Rectangle = L X W**

L is the length of longer side of rectangle

W is the length of smaller side of rectangle

**Perimeter of Rectangle**

We can calculate perimeter of rectangle as follows:

**Perimeter of Rectangle = 2 X (L + W)**

L is the length of longer side of rectangle

W is the length of smaller side of rectangle

## Java program to calculate area and perimeter of a rectangle

package com.tcc.java.programs; import java.util.*; public class RectangleAreaPerimeter { public static void main(String args[]) { int length, width, area, perimeter; Scanner in = new Scanner(System.in); System.out.println("Enter length of Rectangle"); length = in.nextInt(); System.out.println("Enter width of Rectangle"); width = in.nextInt(); // Area of rectangle = length X width area = length*width; // Perimeter of rectangle = 2 X (length X width) perimeter = 2*(length + width); System.out.println("Area of Rectangle : "+ area); System.out.println("Rectangle of Rectangle : "+ perimeter); } }Output

Enter length of Rectangle 4 Enter width of Rectangle 5 Area of Rectangle : 20 Rectangle of Rectangle : 18