JTextArea中的行间距

import javax.swing.*;

public class JTextAreaExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("JTextArea Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 300);

        JTextArea textArea = new JTextArea();
        textArea.setText("This is an example of JTextArea.\nLine spacing can be adjusted using setLineSpacing() method.");
        textArea.setLineSpacing(1.5); // Set line spacing to 1.5 times the font size

        frame.add(textArea);
        frame.setVisible(true);
    }
}