向JTextArea添加JButton的步骤

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

public class JTextAreaExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("JTextArea Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JTextArea textArea = new JTextArea();
        JButton button = new JButton("Button Text");
        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                // 在这里编写按钮被点击时的操作
                textArea.append("Button clicked!\n");
            }
        });

        JScrollPane scrollPane = new JScrollPane(textArea);
        frame.add(scrollPane);
        frame.add(button, BorderLayout.SOUTH);

        frame.setSize(300, 200);
        frame.setVisible(true);
    }
}