Assignment #74 and Safe Square Root

Code

    /// Name: Brendan Baird
    /// Period: 6
    /// Program Name: Safe Square Root
    /// File Name: SquareRoot.java
    /// Date Finished: 11/12/2015
    
    import java.util.Scanner;

    public class SquareRoot
    {
        public static void main(String[] args)
        {
            Scanner keyboard = new Scanner(System.in);
            
            int n;
            
            System.out.println("SQUARE ROOT!");
            System.out.print("Enter a number: ");
            n = keyboard.nextInt();
            
            while ( n < 0 )
            {
                System.out.println("You can't take the square root of a negative number, silly.");
                System.out.print("Try again: ");
                n = keyboard.nextInt();
            }
            
            System.out.println("The square root of " + n + " is " + Math.sqrt(n) + ".");
        }
    }
    

Picture of the output