package com.company;

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

public class Main extends JFrame {
    Main(){
        setBounds(100,100,500,300);
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        Container c=getContentPane();
        JTextArea area=new JTextArea();//文字域
        JScrollPane sp=new
 
 JScrollPane(area);//建立滾動面板，給文字域新增滾動條
        c.add(sp);//容器新增滾動面板
        setVisible(true);
    }

    public static void main(String[] args) {
        new Main();
    // write your code here
    }
}