Assignment 74; SquareRoot

Code

  // Donovan Rich
  // Period 6
  // Safe Square Root
  // SquareRoot.java
  // 12/15/2015
  
  import java.util.Scanner;
  
  public class SquareRoot
  {
  	public static void main( String[] args )
  	{
  		Scanner keyboard = new Scanner(System.in);
  
  		double num, sq;
          System.out.println( "This program will take the square root of the number you give it." );
          do
          {
              System.out.print( "Enter a number:  " );
              num = keyboard.nextDouble();
              if ( num < 0 )
                  System.out.println( "You cannot take the square root of a negative number. Please try again." );
          } while ( num < 0 );
          
  
  		
          
          System.out.println("The square root of " + num + " is " + Math.sqrt(num) + "." );
  	}
  }
  

        

Picture of the output