Discussion :

[MAYAHASSAN]

bonsoir a tous
Je voudrais importer un fichier texte dans un jtable
le problème de mon programme c'est lorsque on compiler on voit juste le premier et deuxième ligne de ficher txt
voici mon programme

Code :

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package exempleeeee;
 
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.table.DefaultTableModel;
 
/**
 *
 * @author AGORA
 */
public class txt extends javax.swing.JFrame {
 
    /**
     * Creates new form txt
     */
    public txt() {
        initComponents();
    }
 
    /**
     * 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() {
 
        jScrollPane1 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        jButton1import = new javax.swing.JButton();
 
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 
        jTable1.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
 
            },
            new String [] {
 
            }
        ));
        jScrollPane1.setViewportView(jTable1);
 
        jButton1import.setText("import");
        jButton1import.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1importActionPerformed(evt);
            }
        });
 
        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(132, 132, 132)
                        .addComponent(jButton1import, javax.swing.GroupLayout.PREFERRED_SIZE, 119, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 542, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(86, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(77, 77, 77)
                .addComponent(jButton1import)
                .addGap(90, 90, 90)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 88, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(198, Short.MAX_VALUE))
        );
 
        pack();
    }// </editor-fold>                        
 
    private void jButton1importActionPerformed(java.awt.event.ActionEvent evt) {                                               
        String filePath="C:\\Users\\AGORA\\Desktop\\bts2G.TXT";
        File file = new File(filePath);
        try { 
            BufferedReader br =new BufferedReader(new FileReader(file));
            String firstLine= br.readLine().trim();
            String[] columnsName = firstLine.split(",");
            DefaultTableModel model =(DefaultTableModel)jTable1.getModel();
           model.setColumnIdentifiers(columnsName);
           Object[] tableLines =br.lines().toArray();
          for(int i=0; i<tableLines.length; i++);
          {
                int i = 0;
            String line = tableLines[i].toString().trim();
            String[] dataRow = line.split(";");
            model.addRow(dataRow);
 
          }
        } catch (Exception ex) {
            Logger.getLogger(txt.class.getName()).log(Level.SEVERE, null, ex);
        }
    }                                              
 
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(txt.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(txt.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(txt.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(txt.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>
 
        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new txt().setVisible(true);
            }
        });
    }
 
    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1import;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTable jTable1;
    // End of variables declaration                   
}

et voici l'affichage

merci de vous aide

[wax78]

2 grosses erreurs, dont une perfide :

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for(int i=0; i<tableLines.length; i++);
{
     int i = 0; // totalement inutile.

l'instruction for ne dois jamais se terminer avec un ;

[MAYAHASSAN]

merci beaucoup wax78 pour votre réponse

[jeffray03]

salut,
voici un debut de solution:

Code :

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BufferedReader br =new BufferedReader(new FileReader(file));
    String ligne;
      while ((ligne = br.readLine()) != null) {
           ligne= firstLine.trim();
            String[] columnsName = ligne.split(",");
            DefaultTableModel model =(DefaultTableModel)jTable1.getModel();
           model.setColumnIdentifiers(columnsName);
           Object[] tableLines =br.lines().toArray();
          for(int i=0; i<tableLines.length; i++);
          {
            String line = tableLines[i].toString().trim();
            String[] dataRow = line.split(";");
            model.addRow(dataRow);
 
          }
 
         }

Eric