处理按钮单击并从字段中获取文本

问题在问题的标题中。我有几节课。这是第一个

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

public class GraphicalDisplay {

private JFrame frame;
private JLabel titleLabel1;
private JLabel titleLabel2;
private JLabel titleLabel3;
private JLabel titleLabel4;
private JLabel titleLabel5;
private TextField text;
private Button button;
private JLabel titleLabel6;


public GraphicalDisplay(String title1, String title2, String title3, String title4) {
    buildFrame();
    titleLabel1.setText(title1);
    titleLabel2.setText(title2);
    titleLabel3.setText(title3);
    titleLabel6.setText(title4);
}

private void buildFrame() {
    frame = new JFrame("Графический дисплей");
    frame.setPreferredSize(new Dimension(800, 300));
    frame.setLayout(new GridLayout(8, 1));

    titleLabel1 = new JLabel();
    titleLabel2 = new JLabel();
    titleLabel3 = new JLabel();
    titleLabel6 = new JLabel();
    text = new TextField("", 50);
    button = new Button("Ввести");
    button.addActionListener((ActionListener) this);
    frame.add(titleLabel1);
    frame.add(titleLabel2);
    frame.add(titleLabel3);
    frame.add(text);
    frame.add(button);
    frame.add(titleLabel6);


    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setAlwaysOnTop(true);
    frame.setVisible(true);
    frame.pack();
    }

    @Override
    public void mouseClicked(ActionEvent e) {
        getText1();
    }

    public String getText1() {
        String textbutton = text.getText();
        return textbutton;
    }

    public void setText4(String text) {
        titleLabel6.setText(text);
    }

}

这是第二个

import java.awt.event.MouseEvent;
import java.util.HashSet;

public class SupportSystem
{
private InputReader reader;
private Responder responder;
public GraphicalDisplay display1;

public SupportSystem()
{
    reader = new InputReader();
    responder = new Responder();
}

public void start()
{
    boolean finished = false;

    printWelcome();

    while(!finished) {
        String textbutton = display1.mouseClicked(MouseEvent);
        HashSet<String> input = reader.getInput(textbutton);


        if(input.contains("exit")==true) {
            finished = true;
        }
        else {
            String response = responder.generateResponse(input);
            System.out.println(response);
        }
    }
    printGoodbye();
}

public void printWelcome()
{
    display1 = new GraphicalDisplay("Добро пожаловать в техподдержку DodgySoft.", "Расскажите нам о вашей проблеме.", "Введите 'exit' для выхода из системы.","");
}

private void printGoodbye()
{
    display1.setText4("Приятно было пообщаться. До свидания...");
}

}

研究 Internet 上的内容，我发现了各种处理程序、侦听器、事件等。我自己甚至无法理解它的外观，更不用说工作了。帮助！