JScrollPane的使用

import java.awt.Container;

import java.io.File;

import javax.swing.JFrame;

import javax.swing.Icon;

import javax.swing.ImageIcon;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

public class JScroll

{

public static void main(String[] args){

JFrame frame=new JFrame("we");

Container cont=frame.getContentPane();

String picpath="f:"+File.separator+"b.jpg";

Icon icon=new ImageIcon(picpath);

JPanel pan=new JPanel();

JLabel lab=new JLabel(icon);

pan.add(lab);

JScrollPane scr=null;

scr=new JScrollPane(pan,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,

JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

cont.add(scr);

frame.setSize(230,120);

frame.setLocation(300,200);

frame.setVisible(true);

}

}