将ArrayList值从一个选项卡移动到另一个选项卡

Question

我得到了一个名为DoctorsCare的项目，其中你有一个登录窗口和一个带有3个标签的窗口（预订，医生屏幕，注册）这个程序的目的是让患者预约并让医生知道他们的名字，身份证和其他信息。问题是我无法弄清楚如何将类别BookingPage中的arraylist值移动到医生屏幕选项卡。

import javax.swing.*;

import java.awt.Dimension;
import java.awt.Event;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class NextPage extends JFrame implements ActionListener{
    NextPage()
    {
        JTabbedPane tabbedPane1 = new JTabbedPane();
        JLabel label = new JLabel();

        JTextArea txt = new JTextArea(10,20);
        JPanel panel1 = new JPanel();
        JPanel panel2 = new JPanel();
        JPanel panel3 = new JPanel();

        tabbedPane1.add("booking",panel1);
        tabbedPane1.add("Doctors Screen",panel2);
        tabbedPane1.add("Register",panel3);
        JFrame frame = new JFrame();
        frame.add(tabbedPane1);
        frame.setSize(600, 500);
        frame.setTitle("Welcome to DoctorsCare");

        frame.setVisible(true);

        JButton button = new JButton();
        button.setLabel("Take Appointment");
        button.setPreferredSize(new Dimension(160,40));
        panel1.add(button);

        JButton button2 = new JButton();
        button2.setLabel("Cancel Appointment");
        button2.setPreferredSize(new Dimension(160,40));
        panel1.add(button2);
        button.addActionListener(this);
                 panel2.add(txt);

                 DoctorsScreen dscrn = new DoctorsScreen();
    }

    public void actionPerformed(ActionEvent ae)
    {

            BookingPage page = new BookingPage();
        }   
        }




import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.Normalizer.Form;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.swing.*;


public class BookingPage extends JFrame implements ActionListener{
    //public static ArrayList<List<String>> model = new ArrayList<List<String>>();

    JFrame frame1= new JFrame();
    JTextField id;
    JLabel label = new JLabel("Patient ID:");
    JLabel label2 = new JLabel("Name:");
    JLabel label3 = new JLabel("Gender:");
    JLabel label4 = new JLabel("Date of Birth:");
    JLabel label5 = new JLabel("Address:");
    JLabel label7 = new JLabel("Phone:");
    JLabel label6= new JLabel("brief patient history:");
    JPanel panel1 = new JPanel();
    JPanel panel2 = new JPanel();
    JTextArea phistry = new JTextArea(11,31);
    JTextField text1 = new JTextField(20);
    JTextField text2 = new JTextField(20);
    JTextField text3 = new JTextField(20);
    JTextField text4 = new JTextField(20);
    JTextField text5 = new JTextField(20);
    JTextField text6 = new JTextField(20);
    JTextField text7 = new JTextField(20);
    JButton button = new JButton("SUBMIT");

    BookingPage()
    {
        frame1.setTitle("Booking Appointment");
        frame1.setVisible(true);
        frame1.setSize(600,400);
        frame1.add(panel1);
        panel1.add(label);

        panel1.add(text1);
        panel1.add(label2);
        panel1.add(text2);
        panel1.add(label3);
        panel1.add(text3);
        panel1.add(label4);
        panel1.add(text4);
        panel1.add(label5);
        panel1.add(text5);
        panel1.add(label7);
        panel1.add(text7);
        panel1.add(label6);
        panel1.add(phistry);
        panel1.add(button);
        button.setPreferredSize(new Dimension(160,40));
        button.addActionListener(this);


    }


    public void actionPerformed(ActionEvent e) {     

        PatientInfo info = new PatientInfo();
        info.setPName(text2.getText());
        info.setID(text1.getText());
        info.setGender(text3.getText());
        info.setDoB(text4.getText());
        info.setAddress(text5.getText());
        info.setphistry(text6.getText());

        info.pRefList.add(info);

DoctorsScreen dscrn = new DoctorsScreen（）;

JOptionPane.showMessageDialog(null, new PatientInfo().pRefList.get(0).getPName());
   JOptionPane.showMessageDialog(null, new PatientInfo().pRefList.get(0).getID());
   JOptionPane.showMessageDialog(null, new PatientInfo().pRefList.get(0).getGender());
   JOptionPane.showMessageDialog(null, new PatientInfo().pRefList.get(0).getDoB());
   JOptionPane.showMessageDialog(null, new PatientInfo().pRefList.get(0).getAddress());
   JOptionPane.showMessageDialog(null, new PatientInfo().pRefList.get(0).getphistry());


    }
;}

import java.util.ArrayList;


public class PatientInfo {
        private String ID ;
        private String PName;
        private String Gender;
        private String DoB;
        private String Address;
        private String phistry;

        public static ArrayList<PatientInfo> pRefList = new ArrayList<>();

        public String getID()
        {
            return this.ID;
        }

        public String getPName()
        {
            return this.PName;
        }
        public String getGender()
        {
            return this.Gender;
        }
        public String getDoB()
        {
            return this.DoB;
        }
        public String getAddress()
        {
            return this.Address;
        }
        public String getphistry()
        {
            return this.phistry;
        }

        public void setID(String ID)
        {
            this.ID = ID;
        }
        public void setPName(String PName)
        {
            this.PName = PName;
        }
        public void setGender(String Gender)
        {
            this.Gender = Gender;
        }
        public void setDoB(String DoB)
        {
            this.DoB = DoB;
        }
        public void setAddress(String Address)
        {
            this.Address = Address;
        }
        public void setphistry(String phistry)
        {
            this.phistry = phistry;
        }

        public static int size(int size) {
            // TODO Auto-generated method stub
             size=7;
            return 0;
        }

}