将 Swing 集成到一个简单的文字冒险游戏中

And here is my current JFrame setup, in the Frame class:

import java.awt.FlowLayout;

import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JTextArea;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

public class Frame extends JFrame {

    public static JTextField field;
    public JTextArea area;

    public Frame() {
        setLayout(new FlowLayout());

        area = new JTextArea(20, 40);
        area.setEditable(false);

        field = new JTextField(20);
        add(area);
        add(field);
        pack();
        setVisible(true);

         TextFieldHandler handler = new TextFieldHandler();

            field.addActionListener(handler);
        }

        public class TextFieldHandler implements ActionListener{

            public void actionPerformed(ActionEvent event)
            {
                String line = field.getText();
                area.append(line + "
");
                field.setText("");
            }
        }


    public static void main(String args[]) {

        Frame test = new Frame();
        test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}

我知道如何将输出打印到 JTextArea 而不是控制台.我的问题是如何让 handleCommand() 与 Frame 类中的 actionPerformed() 一起工作，或者我是否应该设置一个动作主类中的听众或类似的东西.任何实施示例将不胜感激.

...
area.setEditable(false);

field = new JTextField(20);
field.addActionListener(new SendText());    
....

class SendText implements ActionListener{
    public void actionPerformed(ActionEvent ae){
        if(ae.getSource() == field){
            String str = field.getText();
            if(!str.equals("")){
                commandHandler.handle(str);
            }
        }
    }
}

public void run(){
   ui.print(commandHandler.listCommands());

   while(true){
       if(commandHandler.continue()){
           ui.print(commandHandler.events());
       }
   }
}