Java resize an image

I would like to display an image in an area in my Jframe but the image takes up much space.

I would like to take it fair precise dimensions. How can I do this in Java

This is my simple code :

I am open to any proposal if I did not use the right method or the right class to instantiate the image.

import java.awt.*;
import javax.swing.*;

public class ExempleDeplace extends JFrame{
    private JLabel myLabel;



     public ExempleDeplace(){
         setLayout(new FlowLayout());
         setTitle("Fenetre, modele Duchi");
         setSize(500,700);
         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         JLabel j = new JLabel(new ImageIcon("src/images/bateau.png")); 

         add(j);

         setVisible(true);



    }




    public static void main (String[] args) {

          ExempleDeplace c = new ExempleDeplace();


    }



}