Java GUI >> Adding Image on Button

gistfile1.java

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JPanel;

public class MyGUI extends JFrame {
        
	JPanel jp;
	JButton jb;
	
	public MyGUI(){
		
		setTitle("Background Color Example");
		setSize(300,300);
		setVisible(true);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		
		jp = new JPanel();
		jb = new JButton();
		
		jb.setIcon(new ImageIcon("C://pn.jpg"));
		jp.add(jb);
		
		add(jp);
		
		validate(); //if you do not validate, image will not be displayed unless you resize your window.
	}
	
	public static void main(String [] args) {
		new MyGUI();	
	}	
}