Java Program to Calculate Area and Perimeter of Square

Hello everyone, today we will learn Java Program to calculate Area and Perimeter of Square. In the previous tutorial, we learned Java Program to calculate Area and Perimeter of Rectangle. Calculating the area and perimeter of the square in Java is very easy. Let’s see how to do it.

We can find the area and perimeter of the square using the following formula.

Area of a Square = side × side = side²

Perimeter of a square = 4 x side

Now let’s write the Program, and the explanations are given after the Program.

Table of Contents

Java Program to calculate Area and Perimeter of Square

import java.util.*; 
 
public class Square {
	public static void main(String[] args)
	
	{
		double side, area, perimeter;
		
		Scanner in = new Scanner(System.in);
                
                // Asking the user to enter the side of square
		System.out.println(" Enter the side of the square :");
		side = in.nextDouble();

 
		area = side * side; // Calculating area of square
		perimeter = 4 * side; // Calculating perimeter of square
		
		System.out.println(" Area of Square : " + area +" square units");
		System.out.println("\nPerimeter of Square : " + perimeter);
 
	}
	
 
}

import java.util.*;

public class Square {

public static void main(String[] args)

{

double side, area, perimeter;

Scanner in = new Scanner(System.in);

// Asking the user to enter the side of square

System.out.println(" Enter the side of the square :");

side = in.nextDouble();

area = side * side; // Calculating area of square

perimeter = 4 * side; // Calculating perimeter of square

System.out.println(" Area of Square : " + area +" square units");

System.out.println("\nPerimeter of Square : " + perimeter);

}

What we did?

First of all we have imported the util package.
Then created a class and named it Square.
After that started main() method of the program.
Then inside main() method declared variables.
Then created object of the Scanner class.
Now asked the user to enter the side of square. Then read the value of side of square entered by the user.
Then calculated area of square using the formula area = side * side
In the next line calculated perimeter of square using the formula perimeter = 4 * side
Then finally displayed the value of area and perimeter of square on the screen.

Output

Enter the side of the square :3
Area of Square : 9.0 square units
Perimeter of Square : 12.0

Enter the side of the square :3

Area of Square : 9.0 square units

Perimeter of Square : 12.0

So in this tutorial, we have learned Java Program to calculate Area and Perimeter of a Square. In the next tutorial, we will learn Java Program to calculate Area and Perimeter of Parallelogram.

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Java Program to calculate Area and Perimeter of Square

What we did?

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