List app in java cant call to a function. pls - function

Question

I have done all the details I have done, and I don't get an error but what I want to do doesn't work.
I tried to check on google, chatgpt, and friends. I was expected to a window with wait for input from the user, and the user writes a task and he enters "submit". Then, a window of DeadLine comes with an import calendar. So, the user chooses a DeadLine and he presses "OK". and then I created a constructor with the selected time and the task (to print the input) therefore, I called to the constructor and its doesn't call. Please help me. ):
The code:
import javax.swing.*;
import com.toedter.calendar.JCalendar;
import java.awt.*;
import java.awt.event.*;
import java.util.Calendar;
import java.util.Date;
public class List extends JFrame {
String todo = "TO DO: ";
ImageIcon icon1;
JButton button;
public static String task;
static JLabel label,label2,label3;
static JLabel titletaskLabel,titletaskLabel2,titletaskLabel3,titletaskLabel4;
static JFrame frame;
public static JTextField text;
static Font myFont = new Font("Ink Free", Font.BOLD, 30);
static Font yourFont = new Font("Ink Free", Font.HANGING_BASELINE, 20);
static JCalendar calendar;
static Date selectedDate;
List() {
frame = new JFrame("List");
icon1 = new ImageIcon("list.png");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(600, 900);
frame.setIconImage(icon1.getImage());
frame.setLayout(null);
label = new JLabel("To Do List: ");
label.setBounds(50, 50, 200, 20);
label2 = new JLabel("Enter a task: ");
label2.setFont(myFont);
label2.setBounds(70, 460, 200, 40);
button = new JButton("Submit");
button.setBounds(470, 500, 80, 50);
button.setBackground(Color.green);
button.addActionListener(new ActionListener1());
text = new JTextField();
text.setBounds(70, 500, 370, 50);
text.setFont(myFont);
frame.add(text);
frame.add(button);
frame.add(label);
frame.add(label2);
frame.setVisible(true);
}
static void addDeadline() {
JDialog dialog = new JDialog(frame, "Choose a Due Date", true);
dialog.setSize(400, 400);
dialog.setLocationRelativeTo(frame);
JPanel calendarPanel = new JPanel();
calendarPanel.setBounds(70, 600, 370, 200);
calendar = new JCalendar();
calendarPanel.add(calendar);
JButton okButton = new JButton("OK");
okButton.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
// Get the selected date
Calendar selectedCalendar = calendar.getCalendar();
selectedDate = selectedCalendar.getTime();
task = text.getText();
System.out.println(selectedDate);
dialog.setVisible(false);
tasks(); // add the new task to the frame
}
});
calendarPanel.add(okButton);
dialog.add(calendarPanel);
dialog.setVisible(true);
}
static void tasks() {
titletaskLabel = new JLabel(task + "The DeadLine is: " + selectedDate);
titletaskLabel.setBounds(50, 70, 200, 50);
frame.add(titletaskLabel);
}
static class ActionListener1 implements ActionListener {
#Override
public void actionPerformed(ActionEvent e) {
addDeadline();
}
}
}
public class Main extends List{
public static void main(String[] args) {
new List();
}
}