java布局显示图片

老师要求以个提示框，上面一行字，下面一幅图片

import java.awt.BorderLayout;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class Shanshui {

	public static void main(String[] args) {
		new img();
	}
}
class img{
	JPanel p1,p2;
	
	JLabel l1,l2;
	public img(){
		JFrame f= new JFrame();
		p1=new JPanel();
		p2=new JPanel();
		ImageIcon img = new ImageIcon("img\\aaaa.jpg");
		l1 = new JLabel(img);
		l2 = new JLabel("一幅图片");
		f.setLayout(new BorderLayout(2,1));
		f.setSize(500, 500);
		f.setVisible(true);
		//f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		p1.add(l2);
		p2.add(l1);
		f.add(p1,BorderLayout.NORTH);
		f.add(p2);
	}
}

运行结果