Affichage JTable

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

public class Coucou1504 extends JFrame {
	private JTable table;

	public static void main(String args[]) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					Coucou1504 frame = new Coucou1504();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	public Coucou1504() {
		super();
		setBounds(100, 100, 500, 375);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		final JScrollPane scrollPane = new JScrollPane();
		getContentPane().add(scrollPane);

		table = new JTable();
		scrollPane.setViewportView(table);

		// Le seul but de cette méthode est de mettre en évidence
		// le remplissage initial du modèle
		initTable(table);

		final JPanel southPane = new JPanel();
		getContentPane().add(southPane, BorderLayout.SOUTH);

		final JButton addRowsButton = new JButton();
		addRowsButton.addActionListener(new ActionListener() {
			public void actionPerformed(final ActionEvent e) {
				// Créer un thread de génération auto de lignes
				// à rajouter au modèle de notre table
				Thread rowAppenderThread = new Thread() {
					// notre table à déjà 3 lignes, démarrer donc avec la 4ème
					private int initialCounter = 3;

					@Override
					public void run() {
						// Boucle infinie
						while (true) {
							Object[] row = new Object[] { "val " + initialCounter + ".0", "val " + initialCounter++ + ".1" };
							System.out.println("Adding row: " + row[0] + " " + row[1]);
							DefaultTableModel model = (DefaultTableModel) table.getModel();
							model.addRow(row);

							// Marquer une pause d'une seconde
							try {
								Thread.yield();
								Thread.sleep(1000);
							} catch (InterruptedException e) {
								e.printStackTrace();
							}
						}
					}
				};

				rowAppenderThread.start();
			}
		});

		addRowsButton.setText("Add rows");
		southPane.add(addRowsButton);
		//
	}

	private void initTable(JTable table) {
		Object[][] data = new Object[][] { { "val 0.0", "val 0.1" }, { "val 1.0", "val 1.1" }, { "val 2.0", "val 2.1" } };
		Object[] columns = new Object[] { "Fst column", "Second column" };

		table.setModel(new DefaultTableModel(data, columns));
	}

}

public Object [][] VerificationPeser(int i) throws IOException
    {
            int colNo = 4;
            int nombreLigne=5;
            Object[][] informations = new Object[nombreLigne][colNo]; // On créé un tableau pour chaque ligne de la taille du JTable
            for(i=0;i<nombreLigne;i++)
            {
                int numEchantillon=Balance.RecupererNumEchantillon(i);
                int numAiguille=Balance.RecupererNumAiguille(i);
                String poids=bufRead.readLine();
                poids=poids.replace(" ","");
                //String poids="5654";
                informations[i][0]=numEchantillon;
                informations[i][1]=numAiguille;
                informations[i][2]=poids;
                informations[i][3]=new Boolean(false);
                System.out.println(i);
            }
            return informations;
             
    }

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package balance;

import com.sun.comm.Win32Driver;
import java.awt.Component;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.comm.CommPortIdentifier;
import javax.comm.NoSuchPortException;
import javax.comm.PortInUseException;
import javax.comm.SerialPort;
import javax.comm.UnsupportedCommOperationException;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;

/**
 *
 * @author Christine
 */
public class Tableau
{
    JTable laTable;
    private boolean DEBUG=false;
    Balance balance;
    private ArrayList listePoids=new ArrayList();
    private BufferedReader bufRead;
    private CommPortIdentifier portId;
    private SerialPort sPort;
    public Tableau(int i) throws IOException, NoSuchPortException, PortInUseException, UnsupportedCommOperationException
    {
            Win32Driver w32Driver = new Win32Driver();
            w32Driver.initialize(); //initialisation du driver
            portId = CommPortIdentifier.getPortIdentifier("COM1"); //identification du port COM1
            sPort = (SerialPort) portId.open("BalanceAutomatique", 3000); //Ouvertur du port COM1
            sPort.setSerialPortParams(9600, SerialPort.DATABITS_7, SerialPort.STOPBITS_1, SerialPort.PARITY_ODD);
            bufRead = new BufferedReader(new InputStreamReader(sPort.getInputStream())); //Preparation de la lecture du port COM1
        this.laTable = new JTable(new MyTableModel(i));
        initColumnSizes(laTable);
       // balance=new Balance();
    }
 
    private void initColumnSizes(JTable table) {
        MyTableModel model = (MyTableModel)table.getModel();
        TableColumn column = null;
        Component comp = null;
        int headerWidth = 0;
        int cellWidth = 0;
        Object[] longValues = model.longValues;
        TableCellRenderer headerRenderer =
        table.getTableHeader().getDefaultRenderer();

        int indexFin=0;


        for (int i = 0; i < indexFin; i++) {
            System.out.println(i);
            System.out.println(indexFin);
            column = table.getColumnModel().getColumn(i);

            comp = headerRenderer.getTableCellRendererComponent(
                                 null, column.getHeaderValue(),
                                 false, false, 0, 0);
            headerWidth = comp.getPreferredSize().width;

            comp = table.getDefaultRenderer(model.getColumnClass(i)).
                             getTableCellRendererComponent(
                                 table, longValues[i],
                                 false, false, 0, i);
            cellWidth = comp.getPreferredSize().width;

            if (DEBUG) {
                System.out.println("Initializing width of column "
                                   + i + ". "
                                   + "headerWidth = " + headerWidth
                                   + "; cellWidth = " + cellWidth);
            }

            column.setPreferredWidth(Math.max(headerWidth, cellWidth));
        }
    }
    
    public Object [][] VerificationPeser(int i) throws IOException
    {
            int colNo = 4;
            int nombreLigne=5;
            Object[][] informations = new Object[nombreLigne][colNo]; // On créé un tableau pour chaque ligne de la taille du JTable
            for(i=0;i<nombreLigne;i++)
            {
                int numEchantillon=Balance.RecupererNumEchantillon(i);
                int numAiguille=Balance.RecupererNumAiguille(i);
                String poids=bufRead.readLine();
                poids=poids.replace(" ","");
                //String poids="5654";
                informations[i][0]=numEchantillon;
                informations[i][1]=numAiguille;
                informations[i][2]=poids;
                informations[i][3]=new Boolean(false);
                System.out.println(i);
            }
            return informations;
             
    }
   
 public Object[][] getResultat(int i) throws IOException
    {
        Object[][] tableaudesResultats=null;
        tableaudesResultats=VerificationPeser(i);
        return tableaudesResultats;
    }

    

    class MyTableModel extends AbstractTableModel {
        private String[] columnNames;

        private Object[][] data;

        public final Object[] longValues = {"Vosse","Christine",Boolean.TRUE,Boolean.TRUE};
        private boolean DEBUG;

        public MyTableModel(int i) throws IOException
        {
                String[] columnNamesResultat={"Num Aiguille","Num Echantillon","Poids","Erreur"};
                columnNames=columnNamesResultat;
                data=getResultat(i);

        }

        public int getColumnCount() {
            return columnNames.length;
        }

        public int getRowCount() {
            return data.length;
        }

        public String getColumnName(int col) {
            return columnNames[col];
        }

        public Object getValueAt(int row, int col) {
            return data[row][col];
        }


        /*
         * JTable uses this method to determine the default renderer/
         * editor for each cell.  If we didn't implement this method,
         * then the last column would contain text ("true"/"false"),
         * rather than a check box.
         */
        public Class getColumnClass(int c) {
            return getValueAt(0, c).getClass();
        }

        /*
         * Don't need to implement this method unless your table's
         * editable.
         */
        public boolean isCellEditable(int row, int col) {
            //Note that the data/cell address is constant,
            //no matter where the cell appears onscreen.
            if (col < 3) {
                return false;
            } else {
                return true;
            }
        }

        /*
         * Don't need to implement this method unless your table's
         * data can change.
         */
        public void setValueAt(Object value, int row, int col) {
            if (DEBUG) {
                System.out.println("Setting value at " + row + "," + col
                                   + " to " + value
                                   + " (an instance of "
                                   + value.getClass() + ")");
            }

            data[row][col] = value;
            fireTableCellUpdated(row, col);

            if (DEBUG) {
                System.out.println("New value of data:");
                printDebugData();
            }
        }

        private void printDebugData() {
            int numRows = getRowCount();
            int numCols = getColumnCount();

            for (int i=0; i < numRows; i++) {
                System.out.print("    row " + i + ":");
                for (int j=0; j < numCols; j++) {
                    System.out.print("  " + data[i][j]);
                }
                System.out.println();
            }
            System.out.println("--------------------------");
        }
    }
}

  try {
            for(int i=0;i<5;i++)
            {
            Table.setModel(new Tableau(i).laTable.getModel());
            }
        } catch (IOException ex) {
            Logger.getLogger(framePesee1.class.getName()).log(Level.SEVERE, null, ex);
        } catch (NoSuchPortException ex) {
            Logger.getLogger(framePesee1.class.getName()).log(Level.SEVERE, null, ex);
        } catch (PortInUseException ex) {
            Logger.getLogger(framePesee1.class.getName()).log(Level.SEVERE, null, ex);
        } catch (UnsupportedCommOperationException ex) {
            Logger.getLogger(framePesee1.class.getName()).log(Level.SEVERE, null, ex);
        }