Mathematical Library Methods — Question 9

public class KboatNumber
{
    public static void main(String args[]) {
        int x = 81;
        int y = 3;
        
        double r1 = Math.pow(x, y);
        System.out.println("x to the power of y = " + r1);
        
        double r2 = Math.sqrt(y);
        System.out.println("Square root of y = " + r2);
    }
}