Ayuda Estoy haciendo una aplicacion en la cual agrego botones y etiquetas segun el tamaño de de una variable ....

/*
 * Inicio.java
 *
 * Created on 16/03/2010, 01:14:54 PM
 */

package vpn2;

import java.awt.Color;
import java.awt.Font;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.SwingConstants;

/**
 *
 * @author SistemasII
 */
public class Inicio extends javax.swing.JFrame implements ActionListener {
    JButton[] Boton;
    JLabel[] Etiqueta;

       public String tiendas []={
"Higalgo","Tellez","Aragon","Gerona","Los Angeles","Torrres Landa","Rio Mayo","Cueramaro","Montaña","Maria Dolores","Guanajuato",
"Coesillo","Aeropuerto","SEAP","Lagos Blvd","Satelite","Fco. Villa","Pensilvania","Boqueron","Reboceros","Lagos Centro","Rio Bravo",
"San Felipe","San Jose","Maguey","Aquiles","Medina","Joya","Castillos","San Juan","Villas de S.J","Puentesillas","Romita"};
     public String ip []={
"200","201","202","203","204","205","206","207","208","209","210","211","212","213","214","215",
"216","217","218","219","220","221","222","223","224","225","226","227","228","229",
"230","231","232"
     };
    /** Creates new form Inicio */
    public Inicio() {
        initComponents();
        muestraformulario();
}

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jPanel2 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jPanel3 = new javax.swing.JPanel();
        jSeparator1 = new javax.swing.JSeparator();
        jLabel2 = new javax.swing.JLabel();

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 100, Short.MAX_VALUE)
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 100, Short.MAX_VALUE)
        );

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Aceros y Perfiles del Sol");

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 505, Short.MAX_VALUE)
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 244, Short.MAX_VALUE)
        );

        jLabel1.setFont(new java.awt.Font("Tahoma", 3, 36)); // NOI18N
        jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel1.setText("Conexion VPN");

        jLabel2.setText("jLabel2");

        javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
        jPanel3.setLayout(jPanel3Layout);
        jPanel3Layout.setHorizontalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel2)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jSeparator1, javax.swing.GroupLayout.DEFAULT_SIZE, 477, Short.MAX_VALUE))
        );
        jPanel3Layout.setVerticalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jSeparator1, javax.swing.GroupLayout.PREFERRED_SIZE, 10, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel2))
                .addContainerGap(19, Short.MAX_VALUE))
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jLabel1)
                .addContainerGap())
            .addComponent(jPanel3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
        );

        pack();
    }// </editor-fold>

    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Inicio().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JSeparator jSeparator1;
    // End of variables declaration

    public void ping(String direccion) throws UnknownHostException , IOException {

    JButton b = new JButton(direccion);
        for (int i = 0; i < tiendas.length; i++) {

            if (tiendas[i].equals(direccion)){
                InetAddress pi = InetAddress.getByName("192.168.1."+ip[i]);
                if (pi.isReachable(4000)){
                JOptionPane.showMessageDialog(rootPane, "Conexion estableciada con "+tiendas[i], direccion, 1);
                b.setForeground(Color.red);
                cambiarLabel(i, 1);
                }
                else {
                JOptionPane.showMessageDialog(rootPane, "No existe Conexion con "+tiendas[i], direccion, 0);
                 cambiarLabel(i, 2);
                }
            }
        }

    }
    public void cambiarLabel(int i, int c)//i: indice //c: 1-verde 2-rojo
    {
        if(i >= 0 && i < tiendas.length && c == 1)
        {
            Etiqueta[i].setForeground(Color.green);
        }
        if(i >= 0 && i < tiendas.length && c == 2)
        {
            Etiqueta[i].setForeground(Color.red);
        }
    }

    public void muestraformulario(){
        Boton = new JButton[tiendas.length];
        Etiqueta = new JLabel[tiendas.length];

        int n=0,m=0,ñ=0,o=87,c=1;
        Font letra= new Font("Arial", 0, 11);
        Font grueso=new Font("Arial", 4, 12);
        for (int i = 0; i < tiendas.length; i++)
        {
            Boton[i] = new JButton(tiendas[i]);
            Etiqueta[i] = new JLabel(ip[i],0);

               jPanel2.add(Boton[i]);
               Boton[i].setFont(letra);
               Boton[i].setVisible(true);
               Boton[i].setSize(84,20);
               Boton[i].setLocation(m,n);
               Boton[i].setHorizontalAlignment(SwingConstants.LEFT);
               Boton[i].setActionCommand(tiendas[i]);
               Boton[i].addActionListener(this);
               Boton[i].setMargin(new Insets(1, 1, 1, 1));
               Boton[i].setName(tiendas[i]);

               jPanel2.add(Etiqueta[i]);
               Etiqueta[i].setFont(grueso);
               Etiqueta[i].setVisible(true);
               Etiqueta[i].setSize(40, 20);
               Etiqueta[i].setLocation(o,ñ);
               Etiqueta[i].setHorizontalAlignment(SwingConstants.LEFT);
               Etiqueta[i].setName(ip[i]);
               
               if (c==10){
                   o=o+123;
                   m=m+123;
                   c=1;
                   n=0;
                   ñ=0;
               }
               else{
                    c++;
                    n=n+22;
                    ñ=ñ+22;
               }
        }

    }

    public void actionPerformed(ActionEvent e) {
        try {
            ping(e.getActionCommand());
        } catch (UnknownHostException ex) {
            Logger.getLogger(Inicio.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(Inicio.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}