[adlb1300]

I'm trying to code an JButton and cannot get the code to compile correctly. When I add the action listener to the button I get an error that non-static variable this cannot be referenced from a static context. I'm also having problems with the method that is setup to handle the event. Here is my code:

Code:

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

public class GuessNumber implements ActionListener{
        
    public static void main(String[] args) {
        
        JButton okButton;
        JLabel msgLabel;
        final JTextField answerTextField;
        JPanel panel;
        String askForNum = "Please enter what you think the random number is below.";
        
        // generates randomNumber between 1 and 100
        int randomNumber;
        int max = 100;
        Random random = new Random();
        randomNumber = random.nextInt(max +1);
        
        // output of random number for testing purposes remove prior to submission
        System.out.println(randomNumber);
        
        // creates JLabel that asks user to guess what the random number is and enter it below
        msgLabel = new JLabel(askForNum, JLabel.CENTER);
        msgLabel.setSize(400, 150);
        msgLabel.setFont(new Font("Times New Roman", Font.BOLD, 14));

      
        answerTextField = new JTextField();
        answerTextField.setFont(new Font("Times New Roman", Font.PLAIN, 14));
        answerTextField.setSize(75, 30);
        answerTextField.setVisible(true);    
        
        okButton = new JButton("Ok");
        okButton.setSize(30, 30);
        okButton.setFont(new Font("Times New Roman", Font.PLAIN, 14));
        okButton.addActionListener(this);
        
        panel = new JPanel();
        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
        panel.add(msgLabel);
        panel.add(answerTextField);
        panel.add(okButton);
        
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(panel);
        f.setSize(400, 200);
        f.setVisible(true);
        

    }
    
    public void actionPerformed(ActionEvent e){
        if(e.getSource() == okButton){
            
        }
        
    }
}

Thanks