Add Image to JAVA Frame JAVA PROGRAMMING GUI

How to add image to java frame
JLabel img = new JLabel(new ImageIcon("path of the image with extension");
Container c = getContentPane();
c.add(img,"North");

for example
path : "D:/book.jpg"


code test
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class ReturnBook extends JFrame implements ActionListener
{
private JButton submit,close;
private JTextField bookid;
private JLabel Labelbookid;
public ReturnBook()
{
setTitle("Return Book");
setSize(300,200);
setResizable(false);
JPanel p = new JPanel();
JPanel p1 = new JPanel();
Container c = getContentPane(); //c is the object of Container

submit = new JButton("Submit");
close = new JButton("Close");
p.add(submit);
p.add(close);
c.add(p,"South");
submit .addActionListener(this);
close .addActionListener(this);

bookid = new JTextField(15);
Labelbookid = new JLabel("Book ID");
p1.add(Labelbookid);
p1.add(bookid);
c.add(p1,"Center");

JLabel img = new JLabel(new ImageIcon("D:/book.jpg")); // in here we need the path of the image it's direct way
c.add(img,"North"); // we add the label to the North of the frame!



p.setLayout(new FlowLayout());
p1.setLayout(new FlowLayout());
setDefaultCloseOperation(EXIT_ON_CLOSE);
}
public void actionPerformed(ActionEvent e)
{
Object source = e.getSource();
if(source == submit)
{
}
else if(source == close){
System.exit(0);
}
}
public static void main(String []args)
{
ReturnBook rb = new ReturnBook();
rb.setVisible(true);
rb.setLocationRelativeTo(null);
}
}