Question

1.Write a Java program using variables to find the area and Perimeter of a square of side 6 cm [Area= side * side Perimeter = 4*side] ​

Answer 1

Area and Perimeter of Square - Java

The area of a square is defined as the product of the two sides of the square. It is also known as squares of sides. The unit of the area is in square units.

$\sf{\;Area = (side)^2 = side \times side}$

The perimeter of a square is equal to the sum of all sides. As we know, all sides of a square are equal so the perimeter is four times the length of any side of a square.

$\sf{\;Perimeter = 4 \times side}$

We will use these formulas to write programs to calculate the area and perimeter of a square.

Here's the program:

$\rule{300}{2}$

// Program to calculate the area and perimeter of a square

public class Area_and_Perimeter      // Creating class

{

   // The Main function

   public static void main(String[] args)

   {

       // Storing side, area and perimeter as int data type

       int side = 6, area, perimeter;

       // Calculating area of a square

       // Area = side * side

       area = side * side;

       // Calculating perimeter of a square

       // Perimeter = 4 * side

       perimeter = 4 * side;

       // Displaying the result of area of a square

       System.out.println("The area of a square is " + area + " square units.");

       // Displaying the result of perimeter of a square

       System.out.println("The perimeter of a square is " + perimeter + " units.");

   }

}

Answer 2

Answer:

write a program to calculate the area and perimeter of a square by using input stream reader class