Assignment #74 and Safe Square Roots

Code

            //Name: Mark Katz
    ///Period: 6
    ///Program Name: Safe Square Root
    ///File Name: squareroot.java
    ///Date Finished: 10/30/15 
import java.util.Scanner;

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


    

Picture of the output