如何在JTextArea列表中浏览此代码的结果？

JTextArea textArea = new JTextArea();

JScrollPane scrollPane = new JScrollPane(textArea);

textArea.setText("代码结果：\n" + result);

textArea.append("代码结果：\n" + result + "\n");

import javax.swing.*;
import java.awt.*;

public class CodeResultViewer extends JFrame {
    private JTextArea textArea;

    public CodeResultViewer() {
        textArea = new JTextArea();

        JScrollPane scrollPane = new JScrollPane(textArea);

        getContentPane().add(scrollPane);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(400, 300);
        setTitle("Code Result Viewer");
        setVisible(true);
    }

    public void displayResult(String result) {
        textArea.setText("代码结果：\n" + result);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> {
            CodeResultViewer viewer = new CodeResultViewer();
            viewer.displayResult("Hello, World!");
        });
    }
}