JTextArea中光标的操作

获取光标所在行数，列数：

import javax.swing.*;
import javax.swing.event.CaretEvent;
import javax.swing.event.CaretListener;
import javax.swing.text.BadLocationException;
import java.awt.*;

public class Test extends JFrame {
   
   

    public static void main(String[]args){
        new Test().launch();
    }

    public void