Write a program to calculate and display the area of a Square

1.	Write a program to calculate and display the area of a Square
Answer» 1) Using Static Methodimport java.util.Scanner;class calculateArea{ public static void main (String args[]) { Scanner sc = NEW Scanner(System.in); System.out.println("ENTER length of side."); DOUBLE a = sc.nextDouble(); double Area = Math.pow(a,2); System.out.println("Area: " + Area); }}Refer to the ATTACHMENT for an example on 6.2) Using Methodimport java.util.Scanner;class AreaOfSquare{ public static void main(String args[]) { Scanner sc= new Scanner(System.in); System.out.println("Enter length of side of the square:"); double a= sc.nextDouble(); double cal=area(a); System.out.println("Area of Square is: " + cal); } static double area(double r) { return r*r; }}Refer to the above attachment for an example on 4.

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