Hi,
I've gotten this program to work but I want to format it differently. I feel like I've tried everything to make the changes that I want but they just don't work. I think I may have the right idea on most of what I want to change but keep putting statements in the wrong place. Basically, this program has a random number between 1 and 1000 and the user is supposed to guess it. The program keeps up with the number of guesses, turns the frame red when the user is getting warmer, turns it blue when they are getting colder, and yellow when they guess it correctly. After each guess, it keeps their last guess in an editable JTextField but I would like it to clear the field for each new guess so that the user doesn't have to backspace to enter a new guess each time. I attached a Word doc with some screenshots of the output and explanations of what I'd like to change. I just can't seem to make any changes work. I keep doing things that mess up something else. Anyway, I've put the code back to what works and am pasting it below. I just don't know where or how to make the changes that I want. Can someone help me?
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.Random;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.SwingUtilities;
public class GuessNumber extends JFrame
{
private int Guesses = 0;
private int GuessOld = 0;
private int number; // application's number
private JTextField guessInputJTextField; // user input field
private JLabel prompt1JLabel; // first line of instruction
private JLabel prompt2JLabel; // second line of instructions
private JLabel messageJLabel; // displays message of game status
private JLabel message2JLabel; //display number of guesses
private JLabel random1 = new JLabel("");
private JButton newGameJButton; // creates new game
private Color background; // background color of application
// set up GUI and initialize values
public GuessNumber()
{
super("Guessing Game");
setLayout(new FlowLayout());
background = Color.LIGHT_GRAY; // set background to light gray
prompt1JLabel = new JLabel("I have a number between 1 and 1000."); // describe game
add(prompt1JLabel);
prompt2JLabel = new JLabel("Can you guess my number? Enter your Guess:"); // prompt user
add(prompt2JLabel);
guessInputJTextField = new JTextField(5); // to enter guesses
guessInputJTextField.addActionListener(new GuessHandler());
add(guessInputJTextField);
messageJLabel = new JLabel("");
add(messageJLabel);
message2JLabel = new JLabel ("");
add (message2JLabel);
newGameJButton = new JButton("New Game"); // create "New Game" button
add(newGameJButton); // add newGame button to JFrame
Random generator = new Random();
number = generator.nextInt(1001);//create random number
newGameJButton.addActionListener(
new ActionListener() // anonymous inner class
{
public void actionPerformed(ActionEvent e)
{
theGame ();
} // end method actionPerformed
} // end anonymous inner class
); // end call to addActionListener
theGame(); // start new game
} // end GuessGameFrame constructor
// choose a new random number
public void theGame()
{
guessInputJTextField.setText("");
Random generator = new Random();
number = generator.nextInt(1001);
random1.setText("" + number);
SwingUtilities.updateComponentTreeUI(random1);
messageJLabel.setText("");
guessInputJTextField.setEditable(true);
Guesses = 0;
message2JLabel.setText(" # of guesses = " + Integer.toString(Guesses));
getContentPane().setBackground(Color.LIGHT_GRAY);
} // end method theGame
// change background color
class GuessHandler implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
int Guess;
Guess = Integer.parseInt(guessInputJTextField.getText());
if (Math.abs(number - Guess) < Math.abs(number - GuessOld))
{
// Hotter
getContentPane().setBackground(Color.RED);
}
else
{
// Colder
getContentPane().setBackground(Color.BLUE);
}
GuessOld = Guess;
if (Guess > number)
{
messageJLabel.setText("Too High.");
SwingUtilities.updateComponentTreeUI(messageJLabel);
}
if (Guess < number)
{
messageJLabel.setText("Too Low.");
SwingUtilities.updateComponentTreeUI(messageJLabel);
}
// end if
if (Guess == number) // guess is too low
{
messageJLabel.setText("Correct!");
getContentPane().setBackground(Color.YELLOW);
SwingUtilities.updateComponentTreeUI(messageJLabel);
guessInputJTextField.setEditable(false);
}
Guesses++;
message2JLabel.setText(" # of guesses = " + Integer.toString(Guesses));
}
}
}import javax.swing.JFrame;
public class GameGuessNumber{
public static void main(String args[]) throws Exception{
GuessNumber game = new GuessNumber();
game.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
game.setSize(550, 150);
game.setVisible(true);
}
}