纯java代码实现输入框和框并对输入txt进行处理

package com.admin;

import java.awt.*;
import java.awt.event.*;

public class AnonymousClass {

    private Frame f;
    private TextArea before;
    private TextArea after;
    private Button button;
    public AnonymousClass() {
        f  = new Frame();
        before = new TextArea(null,20,10,1);
        after = new TextArea(null,20,10,1);
        button = new Button("tans");
    }

    public void launchFrame() {
        after.setEditable(false);
        f.setResizable(false);
        f.add(before,BorderLayout.NORTH);
        f.add(button,BorderLayout.CENTER);
        f.add(after,BorderLayout.SOUTH);
        button.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                //TODO  处理逻辑
                String s = before.getText();
                System.out.println(s);
                after.setText(s);
            }
        });

         //匿名类结束
        f.addWindowListener(new WindowAdapter() {                    //匿名类开始
            public void windowClosing(WindowEvent e) {
                System.exit(1);
            }
        });                                                      //匿名类结束
        f.setBounds(500, 100, 500, 700);
        f.setVisible(true);
    }

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        AnonymousClass obj = new AnonymousClass();
        obj.launchFrame();

    }

}