Here is an example that displays an image on jframe.

import java.awt.*;
import java.io.*;
import javax.swing.*;
import java.awt.image.*;
import java.awt.event.*;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;

public class DisplayImage extends JPanel {
BufferedImage image;
DisplayImage(){
String f="c:/fruit.png";
File file = new File(f);
try{
image = ImageIO.read(file);
}
catch(Exception ex){}
repaint();
}
public void paint(Graphics g) {
g.drawImage( image, 0, 0, null);

}
public static void main(String[] args) {
JFrame frame = new JFrame();
JPanel p=new DisplayImage();
frame.add(p);
frame.setSize(300, 300);
frame.setVisible(true);
}
}