Thread: JScrollPane cant paint correctly when scroll

Hi,

Anyone know what is the problem? how to make it paint correctly when scroll?

import javax.swing.*;
import java.awt.*;
 
public class MainClass extends JFrame{
	public static void main(String[] args){
		MainClass aa = new MainClass();
		aa.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
		bb b = new bb();
		b.setPreferredSize(new Dimension(1000, 1000));
		JScrollPane sp = new JScrollPane(b);
 
		aa.getContentPane().add(sp);
		aa.setSize(100,100);
		aa.setVisible(true);
		aa.repaint();
	}
}
class bb extends JPanel{
	public void paint(Graphics g){
	//	g.drawString("hihihihi",20,20);
	}
}

[Edited]
It is solved, i just nid to repaint the jframe everytime i adjust the scrollbar. case closed. thanks.

Welcome to the forums fuweng.

Well done for solving this youself. I have marked the thread as Solved.