Assignment #74 and Safe Square Root

Code

    /// Name: Tim Chuang
/// Period: 7
/// Program Name: SafeSquareRoot
/// File Name: SafeSquareroot.java
/// Date Finished: 3/3/2016

import java.util.Scanner;

public class SafeSquareRoot
{
	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();
        }
        
        if ( n > 0 )
        {
            System.out.println("The square root of " + n + " is " + Math.sqrt(n) + ".");
        }
    }
}

    

Picture of the output