Code

   
    /// Name: Afaf Nabeeha
    /// Period: 7
    /// Program Name: Flip Again?
    /// File Name: Flip.java
    /// Date Finished: 12/18/2015 public class Flip

        import java.util.Random;
        import java.util.Scanner;
        
        public class Flip
        {
        	public static void main( String[] args )
        	{
        		Scanner keyboard = new Scanner(System.in);
        		Random rng = new Random();
        
        		String again;
            again = "a";
        
        		do
        		{
        			int flip = rng.nextInt(2);
        			String coin;
        
        			if ( flip == 1 )
        				coin = "HEADS";
        			else
        				coin = "TAILS";
        
        			System.out.println( "You flip a coin and it is... " + coin );
        
        			System.out.print( "Would you like to flip again (y/n)? " );
        			again = keyboard.next();
        		} while ( again.equals("y") );
        	}
        }
        // 3. No, "again" needs to be initialized first. 
             
    
Picture of the output