java - How to add a picture onto JTabbedPane - on a null panel layout? -

i want implement 200 * 200 picture onto jtabbed pane layout src folder.

my issue nothing showing- no error no exception , no picture.

i dont think have declare directory , set private included in src folder.

import java.awt.*; import javax.swing.*;  import java.awt.event.keyevent; import javax.swing.imageicon; import javax.swing.jlabel; import javax.swing.jframe;    public class example1          extends jframe    {     private     jtabbedpane tabbedpane;     private     jpanel      panel1;      public example1()     {         // note: reduce amount of code in example, uses         // panels null layout.  not suitable         // production code since may not display correctly         // look-and-feel.          settitle( "program" );         setsize( 800, 400 );         setbackground( color.gray );          jpanel toppanel = new jpanel();         toppanel.setlayout( new borderlayout() );         getcontentpane().add( toppanel );          // create tab pages         createpage1();           // create tabbed pane         tabbedpane = new jtabbedpane();         tabbedpane.addtab( "tab page", panel1 );         toppanel.add( tabbedpane, borderlayout.center );     }      public void createpage1()     {         panel1 = new jpanel();         panel1.setlayout( null );          imageicon pic = new imageicon("test.png");         jlabel label = new jlabel (pic);         panel1.add(label);         label.setvisible (true);         label.setbounds( 200, 200, 200, 400 ); }  // main method things started     public static void main( string args[] )     {         // create instance of test application         example1 mainframe  = new example1();         mainframe.setvisible( true );       } } 

if want me provide more info please ask it.

don't use null layout (and ride of setbounds()) on panel.

the panel doesn't have preferred size swing thinks there nothing paint.