Assignemnt #74 and SafeSquareRoot

Code

  /// name: Leila Ordukhani
  /// period: 6
  /// program name: Sixty-Fourth Program
  /// file name: SafeSquareRoot.java
  /// date finished: 1/4/16
  
  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 negative numbers.");
            System.out.print("Try again: ");
            n = keyboard.nextInt();
            n++;
        }
        
                     
            System.out.println("The square root of " + n + " is " + Math.sqrt(n));
            n++;
        
        }
        }
  

Picture of the output