java - How to add background to JPanel and then add a JButton on that JPanel -

//calling function imagepanel panel_2 = new imagepanel(new imageicon("c:/users/kagarwal/downloads/intacct_logo_standard_web.png").getimage()); panel_2.add(new jbutton()); panel_2.revalidate();   //called function public class imagepanel extends jpanel {  private image img;    public imagepanel(string img) {     this(new imageicon(img).getimage());   }    public imagepanel(image img) {     this.img = img;     dimension size = new dimension(img.getwidth(null), img.getheight(null));     setpreferredsize(size);     setminimumsize(size);     setmaximumsize(size);     setsize(size);     setlayout(null);   }    public void paintcomponent(graphics g) {     g.drawimage(img, 0, 0, null);   } } 

requirement is: jpanel2 needs have background image, , on top of need add jbutton. but, issue here newly added jbutton not appears in given jpanel, shows background image. missing refresh ?

the problem in paintcomponent, ask graphics object draw image. should call superclass paintcomponent method invoking super.paintcomponent() passing graphics object, in order have components of panel correctly displayed.