Program to calculate area and circumference of circle using constructor in java??

Answer 1

Ms. Nothing please show us your code so we can help you or atleast guide you.
The basic formulas were given in the project as

int areaofSq = s * s;
double areaofCr = Math.PI * r * r;

Answer 2

import java.util.Scanner; public class CircumfrenceOfCircle {    public static void main(String args[]){       iimport java.util.Scanner;
public class CircumfrenceOfCircle {
public static void main(String args[]){
int radius;
double circumference;
Scanner sc = new Scanner(System.in);
System.out.println("Enter the radius of the circle ::");
radius = sc.nextInt();
circumference = Math.PI*2*radius;
System.out.println("Circumference of the circle is ::"+circumference);
}
}nt radius;       double circumference;       Scanner sc = new Scanner(System.in);       System.out.println("Enter the radius of the circle ::");       radius = sc.nextInt();       circumference = Math.PI*2*radius;       System.out.println("Circumference of the circle is ::"+circumference);    } }