How to create a restart method using JFrame? - methods

Question

recently I started learning Java, I watched a YT video where a programmer used static methods and variables to create a simple guess game using JFrame.
Afterwards I tried to implement a close/restart button, after reading some Threads I relized static methods aren´t made that for. So my question is now how do I solve my problem now. :)
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.concurrent.ThreadLocalRandom;
public class main extends JFrame {
JLabel text = new JLabel("Please choose a number between 1 & 10 ");
JLabel textVersuch = new JLabel();
JButton button = new JButton("Try");
int myNumber = ThreadLocalRandom.current().nextInt(1,10+1);
JTextField textField = new JTextField();
int count = 0;
//is there a better way to hide all this information, but still keep them useable for my methods?
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.openUI(); //error occurs
}
//How do I manage to start my method openUI() to start my game?
public void openUI(){
JFrame frame = new JFrame("Program");
frame.setSize(400,400);
frame.setLocation(800,400);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setDefaultLookAndFeelDecorated(true);
text.setBounds(0,50,400,25);
textVersuch.setBounds(300,0,100,25);
textField.setBounds(0,150,50,25);
button.setBounds(50,150,100,25);
button.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
try {
String textFromTextfield = textField.getText();
int number = Integer.parseInt(textFromTextfield);
if(number<1 || number>10){
text.setText("Your number has to be between 1 & 10 ");
textField.setText("");
}else{
guess(number);
}
}catch (Exception error){
text.setText("Please enter a digit! ");
textField.setText("");
}
}});
frame.add(button);
frame.add(textField);
frame.add(text);
frame.add(textVersuch);
frame.setLayout(null);
frame.setVisible(true);
}
public void close(JFrame frame){
frame.dispose(); //here I want to close the game
}
public void guess(int number ) throws InterruptedException {
count++;
textVersuch.setText(count + " tries!");
if(number == myNumber){
text.setText("You was right! " + " You tried " + count + " time(s) :)" );
button.setText("Restart");
button.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
//How can I restart my JFrame?
}
});
} else if (count < 3) {
text.setText("Wrong guess! Retry");
if (number < myNumber){
text.setText("Your searched number is bigger than" + number );
}else {
text.setText("Your searched number is lower than" + number );
}
} else {
text.setText("Sorry, you lost the number was " + myNumber);
}
textField.setText("");
}
}