What's wrong in this?

Question

public class Program
{
public static void main(String[] args) {
int r,cir,area;
r=7;
cir=22/7*r;
area=22/7*r^2;
System.out.println("The circumference is "+cir);
System.out.println("The area is "+area);
}
}

Answer 1

*area and cir should be float
*replace 22 by 22.0 or declare r as float
* ^ stands for xor .use pow function from math

Answer 2

Thanks