Ich machte ein Zahlenspiel in Java Swing und habe Probleme, die Jbutton zu haben ⇐ Java

[Anonymous]

Das Programm funktioniert technisch, aber ich erhalte immer wieder den Fehler: < /p>
"kann" javax.swing.jbutton.addactionListener (java.awt.event.ActionListener) nicht aufrufen. Richtig. < /p>
Hier ist der Code: < /p>

Code: Select all

import javax.swing.*;
import javax.swing.text.NumberFormatter;
import java.awt.*;
import java.awt.event.ActionListener;
import java.util.Random;
class GuessNumberGUI extends JFrame {

// Add required fields here
Random rand = new Random();
int genNo = rand.nextInt(100) +1;
int guesses = 1;
int pInput;
JLabel heading;
JTextField playerGuess;
JLabel output = new JLabel("Hint's appear here!", SwingConstants.CENTER);
JPanel panel;
JButton check;

public static void main(String[] args) {
new GuessNumberGUI();
}

public GuessNumberGUI() {
setTitle("Guess a Number") ;
setSize(400, 200); // You can change the size if you wish to
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
setLocationRelativeTo(null);
//=======================================================
JPanel panel = new JPanel();
panel.setLayout(new BorderLayout());
panel.setBackground(Color.BLACK);
//=======================================================
JLabel heading = new JLabel("Guess a Number between 1 and 100", SwingConstants.CENTER);
heading.setForeground(Color.WHITE);
heading.setFont(new Font("Arial", Font.BOLD, 20));
panel.add(heading, BorderLayout.NORTH);
//========================================================
JTextField playerGuess = new JTextField(SwingConstants.CENTER);
panel.add(playerGuess, BorderLayout.CENTER);
playerGuess.setBackground(Color.BLACK);
playerGuess.setForeground(Color.WHITE);
playerGuess.setFont(new Font("Arial", Font.BOLD, 20));
//=========================================================
JButton check = new JButton("check");
check.setFont(new Font("Arial", Font.BOLD, 20));
panel.add(check, BorderLayout.EAST);
check.setBackground(Color.BLACK);
check.setForeground(Color.WHITE);
System.out.println(genNo);
//==========================================================
output.setForeground(Color.WHITE);
output.setFont(new Font("Arial", Font.BOLD, 20));
panel.add(output, BorderLayout.SOUTH);
add(panel);
check.addActionListener(e -> {
pInput = Integer.parseInt(playerGuess.getText());
checkGuess();});
setVisible(true);
}
public void pressedCheck() {
check.addActionListener(e -> {
pInput = Integer.parseInt(playerGuess.getText());
checkGuess();});
}

public void checkGuess(){
if (pInput == genNo) {
output.setText("You guessed correctly! No. of tries:" + guesses);
}
else {
wrongGuess();
}
}

private void wrongGuess(){
while (genNo != pInput) {
if (pInput < genNo) {
tooLow();
}
else if (pInput > genNo) {
tooHigh();
}
}

}
private void tooLow(){
output.setText("Too low! Try again!");
guesses++;
pressedCheck();
}
private void tooHigh(){
output.setText("Too high! Try again!");
guesses++;
pressedCheck();
}

}

Ich versuche, den Jbutton zu machen, was im JTextField ist, und erkennen, wo die Eingangsnummer der Player mit der zufällig generierten Zahl verglichen wird, und geben Sie einen Hinweis darauf an.>