Augmentation de la taille de la fenetre en java

package m;

import java.awt.BorderLayout;

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

import java.awt.Button;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Label;
import java.awt.Panel;
import java.awt.TextArea;

public class fenetre extends java.applet.Applet {
 
     
 
 public void paint(Graphics g) {
 
 super.paint(g);
 
 Dimension dim = getSize();
 
 int applargeur = dim.width;

 int apphauteur = dim.height;
 
 g.drawString("width = "+applargeur,60,60);
 
 g.drawString("height = "+apphauteur,60,60);
 
 }   
 
  
 
 public void init() {
  
        Panel s = new Panel();
        s.setLayout(new BorderLayout(40, 40));
        Panel e = new Panel();
        
        Panel o=new Panel();
       
        setLayout (new BorderLayout ());
        add ("North", new Label ("Enter text", Label.CENTER));
        add ("Center", new TextArea ());
        e.setLayout (new GridLayout (0,1));
        e.add (new Button ("Reformat"));
        e.add (new Button ("Spell Check"));
        e.add (new Button ("Options"));
        add ("East", e);

        o.setLayout (new GridLayout (0,1));
        o.add (new Button ("Accueil"));
        o.add (new Button ("MVT cons et encre"));
        o.add (new Button ("Etat encre et consommables"));
        o.add (new Button ("Etat Inventaire et CE"));
        o.add (new Button ("Etat des Arrivages"));
        o.add (new Button ("Fiche création de fournisseur"));
        o.add (new Button ("Fiche création d'article"));
        o.add (new Button ("Actualiser cout"));
        add("West",o);
        
        
        
        s.setLayout (new FlowLayout ());
        s.add (new Button ("Save"));
        s.add (new Button ("Cancel"));
        s.add (new Button ("Help"));
        add ("South", s);
     
     
     
   
 }
  
      
    
  }