import javax.swing.JOptionPane;

public class ScrabbleGUIDemo {

   public static void main( String[] args )
    {

        Scrabble scrabble = new Scrabble();

        while (true) {
            String word = JOptionPane.showInputDialog("Enter word: ");
            if( word == null ) {
                break;
            }

            if( !word.isEmpty() ) {
                int wordValue = scrabble.evaluateWord(word);
                JOptionPane.showMessageDialog( null, word + "   " + wordValue);
            }
        }
   }

}