Assignemnt #74 and Safe Square Root

Code

/// Name: Kyle Ivy
/// Period: 5
/// Program Name: SafeSquareRoot
/// File Name: SafeSquareRoot.java
/// Date Finished: 1/5/2016

    import java.util.Scanner;
    
    public class SafeSquareRoot {
    
        public static void main( String[] args) {
        
        Scanner keyboard = new Scanner(System.in);
        double a, b;
        
        System.out.println( "Square Root! ");
        System.out.print( "Enter a number: " );
        
        do {
        a = keyboard.nextDouble();
        if ( a >= 0 ){
            b = Math.sqrt(a);
            System.out.println( b );
        }
        else if ( a < 0 ){
            System.out.println(" You can't take the square root of a negative number" );
            System.out.print( "Try again: " );
        }
        } while ( a < 0 );
        
        }
    }

    

prog74.PNG