Question

Modify Java Code below:

- Remove Button Try the Number

-Instead of Try the Number button just hit enter on keyboard to try number

-Remove Button Quit

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Random;

// Main Class
public class GuessGame extends JFrame {

// Declare class variables
private static final long serialVersionUID = 1L;
public static Object prompt1;
private JTextField userInput;
private JLabel comment = new JLabel(" ");
private JLabel comment2 = new JLabel(" ");
private int randomNumber;
private int counter = 0;

// Constructor
public GuessGame() {
super("Guessing Game");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

// Content pane
setLayout(new FlowLayout());
Container c = getContentPane();

// Create components
JButton guessButton = new JButton("Try the number");
JButton newGameButton = new JButton("New Game");
JButton quitButton = new JButton("Quit");
JLabel prompt1 = new JLabel("I have a number between 1 and 1000.");
JLabel prompt2 = new JLabel("Can you guess the number?");
JLabel prompt3 = new JLabel("Please enter your guess: ");
comment = new JLabel(" ");
comment2 = new JLabel(" ");
userInput = new JTextField(5);

// Adding components to the pane
c.add(prompt1);
c.add(prompt2);
c.add(prompt3);
c.add(userInput);
c.add(guessButton);
c.add(newGameButton);
c.add(quitButton);
c.add(comment);
c.add(comment2);

// Set the mnemonic
guessButton.setMnemonic('T');
newGameButton.setMnemonic('N');
quitButton.setMnemonic('Q');

// Format pane
setSize(300, 200);
setLocationRelativeTo(null);
setVisible(true);
setResizable(false);

initializeNumber();

// Create the button handlers
GuessButtonHandler ghandler = new GuessButtonHandler(); // instantiate
// new object
guessButton.addActionListener(ghandler); // add event listener

NewButtonHandler nhandler = new NewButtonHandler();
newGameButton.addActionListener(nhandler);

QuitButtonHandler qhandler = new QuitButtonHandler();
quitButton.addActionListener(qhandler);
} // End constructor

//
private void initializeNumber() {
randomNumber = new Random().nextInt(1000) + 1;
}

// GuessButton inner class
private class GuessButtonHandler implements ActionListener {
public void actionPerformed(ActionEvent e) {

// Declare class variables
int getUserInput;
int diff;
int Difference;

// Validate input and if statements for user input
try {
getUserInput = Integer.parseInt(userInput.getText().trim());
counter++;

if (getUserInput == randomNumber) {
JOptionPane.showMessageDialog(null, "Correct! It took you "
+ counter + " guesses", "Random Number: "
+ randomNumber, JOptionPane.INFORMATION_MESSAGE);
initializeNumber();
return;
}
if (getUserInput > randomNumber) {
comment2.setText("The guess was too HIGH. Try a lower number.");
comment2.setForeground(Color.WHITE);
diff = getUserInput - randomNumber;
Difference = Math.abs(diff);
} else {
comment2.setText("The guess was too LOW. Try a higher number.");
comment2.setForeground(Color.WHITE);
diff = randomNumber - getUserInput;
Difference = Math.abs(diff);
}

if (Difference >= 30) {
comment.setText("You are Cold. ");
comment.setForeground(Color.WHITE);
GuessGame.this.setBackgroundColor(Color.BLUE);
}

if (Difference <= 15) {
comment.setText("You are getting Warm");
comment.setForeground(Color.WHITE);
GuessGame.this.setBackgroundColor(Color.RED);
}
} catch (NumberFormatException ex) {
comment.setText("Enter a VALID number!");
}
}
} // End GuessButtonHandler

// NewButton inner class
private class NewButtonHandler implements ActionListener {
public void actionPerformed(ActionEvent e) {
GuessGame app = new GuessGame();

}
} // End NewButtonHandler

// QuitButton inner class
private class QuitButtonHandler implements ActionListener {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
} // End QuitButtonHandler

// Setting background color
private void setBackgroundColor(Color WHITE) {
getContentPane().setBackground(WHITE);
}

// Main method
public static void main(String args[]) {
// instantiate GuessGame object
GuessGame app = new GuessGame();

}// End main method
}// End main class

Answer 1

Please find the updated code below:

package classess5;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Random;

// Main Class
public class GuessGame extends JFrame {

   // Declare class variables
   private static final long serialVersionUID = 1L;
   public static Object prompt1;
   private JTextField userInput;
   private JLabel comment = new JLabel(" ");
   private JLabel comment2 = new JLabel(" ");
   private int randomNumber;
   private int counter = 0;

   // Constructor
   public GuessGame() {
       super("Guessing Game");
       setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

       // Content pane
       setLayout(new FlowLayout());
       Container c = getContentPane();

       // Create components
   //   JButton guessButton = new JButton("Try the number");
       JButton newGameButton = new JButton("New Game");
   //   JButton quitButton = new JButton("Quit");
       JLabel prompt1 = new JLabel("I have a number between 1 and 1000.");
       JLabel prompt2 = new JLabel("Can you guess the number?");
       JLabel prompt3 = new JLabel("Please enter your guess: ");
       comment = new JLabel(" ");
       comment2 = new JLabel(" ");
       userInput = new JTextField(5);

       // Adding components to the pane
       c.add(prompt1);
       c.add(prompt2);
       c.add(prompt3);
       c.add(userInput);
   //   c.add(guessButton);
       c.add(newGameButton);
   //   c.add(quitButton);
       c.add(comment);
       c.add(comment2);

       // Set the mnemonic
//       guessButton.setMnemonic('T');
       newGameButton.setMnemonic('N');
//       quitButton.setMnemonic('Q');

       // Format pane
       setSize(300, 200);
       setLocationRelativeTo(null);
       setVisible(true);
       setResizable(false);

       initializeNumber();

       // Create the button handlers
       GuessButtonHandler ghandler = new GuessButtonHandler(); // instantiate
       // new object
//       guessButton.addActionListener(ghandler); // add event listener
       userInput.addActionListener(ghandler);
       NewButtonHandler nhandler = new NewButtonHandler();
       newGameButton.addActionListener(nhandler);

       QuitButtonHandler qhandler = new QuitButtonHandler();
//       quitButton.addActionListener(qhandler);
   } // End constructor

   //
   private void initializeNumber() {
       randomNumber = new Random().nextInt(1000) + 1;
   }

   // GuessButton inner class
   private class GuessButtonHandler implements ActionListener {
       public void actionPerformed(ActionEvent e) {

           // Declare class variables
           int getUserInput;
           int diff;
           int Difference;

           // Validate input and if statements for user input
           try {
               getUserInput = Integer.parseInt(userInput.getText().trim());
               counter++;

               if (getUserInput == randomNumber) {
                   JOptionPane.showMessageDialog(null, "Correct! It took you "
                           + counter + " guesses", "Random Number: "
                                   + randomNumber, JOptionPane.INFORMATION_MESSAGE);
                   initializeNumber();
                   return;
               }
               if (getUserInput > randomNumber) {
                   comment2.setText("The guess was too HIGH. Try a lower number.");
                   comment2.setForeground(Color.WHITE);
                   diff = getUserInput - randomNumber;
                   Difference = Math.abs(diff);
               } else {
                   comment2.setText("The guess was too LOW. Try a higher number.");
                   comment2.setForeground(Color.WHITE);
                   diff = randomNumber - getUserInput;
                   Difference = Math.abs(diff);
               }

               if (Difference >= 30) {
                   comment.setText("You are Cold. ");
                   comment.setForeground(Color.WHITE);
                   GuessGame.this.setBackgroundColor(Color.BLUE);
               }

               if (Difference <= 15) {
                   comment.setText("You are getting Warm");
                   comment.setForeground(Color.WHITE);
                   GuessGame.this.setBackgroundColor(Color.RED);
               }
           } catch (NumberFormatException ex) {
               comment.setText("Enter a VALID number!");
           }
       }
   } // End GuessButtonHandler

   // NewButton inner class
   private class NewButtonHandler implements ActionListener {
       public void actionPerformed(ActionEvent e) {
           GuessGame app = new GuessGame();

       }
   } // End NewButtonHandler

   // QuitButton inner class
   private class QuitButtonHandler implements ActionListener {
       public void actionPerformed(ActionEvent e) {
           System.exit(0);
       }
   } // End QuitButtonHandler

   // Setting background color
   private void setBackgroundColor(Color WHITE) {
       getContentPane().setBackground(WHITE);
   }

   // Main method
   public static void main(String args[]) {
       // instantiate GuessGame object
       GuessGame app = new GuessGame();

   }// End main method
}// End main class

output: