(we are having this project as self study, our professor literally just said make a ordering system interface hardcoded without the help of gui builder || our last lesson is method and encapsulation)

So we had a group project that is to create an ordering system without using the jframe gui builder to just drag and drop and we are required to have it hard coded and I created the main code where in my classmates will give me their codes/java files with their respective assigned parts (example: i do the login page and he will do the register page)

The thing is it just doesnt connect I added the actionListener that will create a new Main file

it goes like this

JButton iconButton4 = new JButton();

ImageIcon imageIcon4 = new ImageIcon("C:\Users\PC\Desktop\icons\report.jpg");

iconButton4.setIcon(imageIcon4);

iconButton4.setContentAreaFilled(false);

iconButton4.setBorderPainted(false);

iconButton4.setBounds(620, 310, 140, 140);

p2.add(iconButton4);

p2.setComponentZOrder(iconButton4, 0);

iconButton4.ActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

new Main();

}

});

and the main java file that i was trying to connect to is

package login;


import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.text.MaskFormatter;
import java.awt.print.*;

public class Main extends JFrame implements ActionListener {
    JLabel lb, lb1, lb2, lb3, lb5;
    JTextField tf1, tf2, tf5;
    JTextArea tf3;
    JButton btn, submitButton, printButton;

    Main() {
        super("Report");

        lb5 = new JLabel("Select Date (yyyy-MM-dd):");
        lb5.setBounds(20, 20, 150, 20);

        tf5 = new JTextField(10);
        tf5.setBounds(170, 20, 100, 20);

        btn = new JButton("Choose Date");
        btn.setBounds(280, 20, 120, 20);
        btn.addActionListener(this);

        submitButton = new JButton("Submit");
        submitButton.setBounds(170, 50, 100, 30); 
        submitButton.addActionListener(this); 

        printButton = new JButton("Print");
        printButton.setBounds(280, 300, 100, 50);
        printButton.addActionListener(this);

        lb = new JLabel("Report Transaction:");
        lb.setBounds(30, 80, 450, 30);
        lb.setForeground(Color.red);
        lb.setFont(new Font("Serif", Font.BOLD, 20));

        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(500, 500);

        lb1 = new JLabel("Date");
        lb1.setBounds(20, 120, 100, 20);
        tf1 = new JTextField(50);
        tf1.setBounds(130, 120, 200, 20);

        lb2 = new JLabel("Name");
        lb2.setBounds(20, 150, 100, 20);
        tf2 = new JTextField(100);
        tf2.setBounds(130, 150, 200, 20);

        lb3 = new JLabel("Transaction");
        lb3.setBounds(20, 180, 100, 20);
        tf3 = new JTextArea();
        tf3.setBounds(130, 180, 250, 100); 

        setLayout(null);

        // components to the JFrame
        add(lb5);
        add(tf5);
        add(btn);
        add(submitButton);
        add(printButton);
        add(lb);
        add(lb1);
        add(tf1);
        add(lb2);
        add(tf2);
        add(lb3);
        add(tf3);

        tf1.setEditable(false);
        tf2.setEditable(false);
        tf3.setEditable(true); //can edit by the user;editable
    }

    public void actionPerformed(ActionEvent e) {

        //to open the date picker
        if (e.getSource() == btn) {
            String selectedDate = showDatePickerDialog();
            if (selectedDate != null) {
                tf5.setText(selectedDate);
            }
        } else if (e.getSource() == submitButton) {
            try {
                String s = tf5.getText();

                //dummy data 
                String s1 = "Ivan";
                String s2 = "13:20- User processed an order of 2 Patty's Twist Nuggets Meal and 2 Caramel Drift with a total of 320Php.";
                tf1.setText(s);
                tf2.setText(s1);
                tf3.setText(s2);
            } catch (Exception ex) {
                System.out.println(ex);
            }
        } else if (e.getSource() == printButton) {
            printReport();
        }
    }

    private String showDatePickerDialog() {
        JDialog dialog = new JDialog(this, "Date of Transaction2", true);
        dialog.setLayout(new BorderLayout());
        dialog.setSize(300, 200);
        dialog.setLocationRelativeTo(this);

        MaskFormatter maskFormatter;
        try {
            maskFormatter = new MaskFormatter("####-##-##");
            maskFormatter.setPlaceholderCharacter('_');
        } catch (Exception ex) {
            ex.printStackTrace();
            return null;
        }
        JFormattedTextField formattedTextField = new JFormattedTextField(maskFormatter);
        formattedTextField.setColumns(10);

        JButton selectButton = new JButton("Select");
        selectButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                dialog.dispose();
            }
        });

        JPanel panel = new JPanel();
        panel.add(new JLabel("Select Date (yyyy-MM-dd):"));
        panel.add(formattedTextField);
        panel.add(selectButton);
        dialog.add(panel, BorderLayout.CENTER);

        dialog.setVisible(true);

        return formattedTextField.getText();
    }

    private void printReport() {
        String date = tf1.getText();
        String name = tf2.getText();
        String transaction = tf3.getText();


        //report content
        StringBuilder reportContent = new StringBuilder();
        reportContent.append("Report Transaction:n");
        reportContent.append("Date: ").append(date).append("n");
        reportContent.append("Name: ").append(name).append("n");
        reportContent.append("Transaction: ").append(transaction);

        PrinterJob printerJob = PrinterJob.getPrinterJob();
        printerJob.setPrintable(new Printable() {
            public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) {
                if (pageIndex > 0) {
                    return NO_SUCH_PAGE;
                }
                Graphics2D g2d = (Graphics2D) graphics;
                g2d.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
                reportContent.toString();
                return PAGE_EXISTS;
            }
        });

        if (printerJob.printDialog()) {
            try {
                printerJob.print();
            } catch (PrinterException ex) {
                ex.printStackTrace();
            }
        }
    }

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

and I was asking chatgpt for the same problem and he was saying the same solution I was doing, a friend also said that I should try to instatiate a constructor thing with the main class. So is the problem because the file that was sent to me has a Main thingy even tho my file is already the main or its like a code thing

i want to connect the button to another java file but it shows bunch of errors when I do so saying stuffs about the mainframe thing or just the main