Ex03, 17.04.2021

//17.04.2021
import java.util.Scanner;

public class Ex03 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner in = new Scanner(System.in);
        double a;
        double msaha;
        double moheet;

        System.out.print("Enter the length: ");
        a = in.nextDouble();

        msaha = a * a;
        moheet = 4 * a;

        System.out.println("area = " + msaha);
        System.out.println("perimeter = " + moheet);

        in.close();
    }

}