Bonjour, j'ai une Jlist avec des boutons alphabétique , le problème quand je clique par exemple sur le bouton "A" il ne filtre pas la liste et m'affiche pas une liste qui commence tous les prénoms par "A" . Voici mon code. J'ai vraiment besoin de votre aide merci.
Code java : Sélectionner tout - Visualiser dans une fenêtre à part
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package client;
 
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Types;
import java.util.ArrayList;
import java.util.Vector;
import javax.swing.*;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
 
 
public class Liste extends JFrame {
 
	Vector columnNames = new Vector();
    Vector data = new Vector(); 
    static ResultSet rs;
	static Connection conn;
	static Statement stat;
	private JTable table;
    private TableRowSorter<TableModel> sorter;
	private JFrame frame;
	private JTextField filtertxt; 
	private JLabel l1;
	private JButton btna,btnb,btnc,btnd,btne,btnf,btng,btnh,btni,btnj,btnk,btnl,btnm,btnn,btno,btnp,btnq,btnr,btns,btnt,btnu,btnv,btnw,btnx,btny,btnz;
	private ArrayList alist;
 
		public Liste() {
 
			try
		     {
		         Class.forName("com.mysql.jdbc.Driver");
		         System.out.println("com.mysql.jdbc.Driver found");
		         conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/active","root","");
		         System.out.println("Connexion Ok");
 
 
		           //  Read data from a table
		           String sql = "SELECT * FROM ajoututilisateur";
		           Statement stmt = conn.createStatement();
		           ResultSet rs = stmt.executeQuery(sql);
		           ResultSetMetaData md = rs.getMetaData();
		           int columns = md.getColumnCount();
 
		           //  Get column names 
		           for (int i = 1; i <= columns; i++)
		           {
		              columnNames.addElement( md.getColumnName(i) );
		           }
 
		           //  Get row data
		           while (rs.next()) 
		           {
		              Vector row = new Vector(columns);
		              for (int i = 1; i <= columns; i++)
		              {
		                 row.addElement(rs.getObject(i));
		              }
		              data.addElement(row);
		           }
		           rs.close();
		           stmt.close();
		        }
 
 
	    catch(Exception cnfe)
	    {
	        System.out.println("Error:"+cnfe.getMessage());
	    }
 
	    TableModel model = new DefaultTableModel (data,columnNames)
	    {
	    public Class getColumnClass(int columnNames) {
	        Class returnValue;
	        if ((columnNames >= 0) && (columnNames < getColumnCount())) {
	          returnValue = getValueAt(0, columnNames).getClass();
	        } else {
	          returnValue = Object.class;
	        }
	        return returnValue;
	      }
	    };
	     table = new JTable (model) ; 
	     sorter = new TableRowSorter<TableModel>(model) ; 
     	 JScrollPane scrollPane = new JScrollPane((table));
     	 table.setRowSorter (sorter) ; 
     	 getContentPane().setLayout(new GridLayout(2,1));
        getContentPane().add(scrollPane);
	    JPanel form = new JPanel () ;
	    JPanel form1 = new JPanel () ;
	    l1=new JLabel("Recherche :");
	    form.add (l1) ;
 
	//  ------------Bouton actionlistener----------
 
	    btna=new JButton("A");
	    btnb=new JButton("B");
	    btnc=new JButton("C");
	    btnd=new JButton("D");
	    btne=new JButton("E");
	    btnf=new JButton("F");
	    btng=new JButton("G");
	    btnh=new JButton("H");
	    btni=new JButton("I");
	    btnj=new JButton("J");
	    btnk=new JButton("K");
	    btnl=new JButton("L");
	    btnm=new JButton("M");
	    btnn=new JButton("N");
	    btno=new JButton("O");
	    btnp=new JButton("P");
	    btnq=new JButton("Q");
	    btnr=new JButton("R");
	    btns=new JButton("S");
	    btnt=new JButton("T");
	    btnu=new JButton("U");
	    btnv=new JButton("V");
	    btnw=new JButton("W");
	    btnx=new JButton("X");
	    btny=new JButton("Y");
	    btnz=new JButton("Z");
 
	    filtertxt = new JTextField (25) ;
	    filtertxt.getDocument().addDocumentListener(new DocumentListener() 
	     {
	    	 public void changedUpdate(DocumentEvent e) 
	    	 {
	    		 newFilter();
	    		 }
	    	 public void insertUpdate(DocumentEvent e) 
	    	 {
	    		 table.clearSelection();
	    		 newFilter();
	    		 }
	    	 public void removeUpdate(DocumentEvent e) 
	    	 {
	    		 newFilter();
	    		 }
	    	 });
 
 
 
	     form.add (filtertxt) ;
	     //form.add(form1);
	     GridLayout grd=new GridLayout(3,2);
	     getContentPane().setLayout(grd);
	     getContentPane().add(form);
	     getContentPane().add(form1);
	      form1.add(btna);
	     form1.add(btnb);
	     form1.add(btnc);
	     form1.add(btnd);
	     form1.add(btne);
	     form1.add(btnf);
	     form1.add(btng);
	     form1.add(btnh);
	     form1.add(btni);
	     form1.add(btnj);
	     form1.add(btnk);
	     form1.add(btnl);
	     form1.add(btnm);
	     form1.add(btnn);
	     form1.add(btno);
	     form1.add(btnp);
	     form1.add(btnq);
	     form1.add(btnr);
	     form1.add(btns);
	     form1.add(btnt);
	     form1.add(btnu);
	     form1.add(btnv);
	     form1.add(btnw);
	     form1.add(btnx);
	     form1.add(btny);
	     form1.add(btnz);
	     table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
	     table.getSelectionModel().addListSelectionListener(new ListeListener());
 
	     AfficheBoutonListener abl=new AfficheBoutonListener();
 
	     	btna.addActionListener(abl);
			btnb.addActionListener(abl);
			btnc.addActionListener(abl);
			btnd.addActionListener(abl);
			btne.addActionListener(abl);
			btnf.addActionListener(abl);
			btng.addActionListener(abl);
			btnh.addActionListener(abl);
			btni.addActionListener(abl);
			btnj.addActionListener(abl);
			btnk.addActionListener(abl);
			btnl.addActionListener(abl);
			btnm.addActionListener(abl);
			btnn.addActionListener(abl);
			btno.addActionListener(abl);
			btnp.addActionListener(abl);
			btnq.addActionListener(abl);
			btnr.addActionListener(abl);
			btns.addActionListener(abl);
			btnt.addActionListener(abl);
			btnu.addActionListener(abl);
			btnv.addActionListener(abl);
			btnw.addActionListener(abl);
			btnx.addActionListener(abl);
			btny.addActionListener(abl);
			btnz.addActionListener(abl);
 
		}
 
 
	    private void newFilter()  
	    {  
	        RowFilter<TableModel , Integer> rf = null;   
	        //declare a row filter for your table model  
	        try  
	        {  
	            rf = RowFilter.regexFilter("^(?i)" +  filtertxt.getText(),6);    
	            //initialize with a regular expression  
	        }  
	        catch (java.util.regex.PatternSyntaxException e)  
	        {  
	            return;  
	        }  
	        sorter.setRowFilter(rf);  
	    }  
 
		private class AfficheBoutonListener implements ActionListener{
 
			public void actionPerformed (ActionEvent e)
			{
				RowFilter<TableModel , Integer> rf = null;   
    	        //declare a row filter for your table model  
    	        try  
    	        {  
    	            rf = RowFilter.regexFilter("^A" +  filtertxt.getText(),0);    
    	            //initialize with a regular expression  
    	        }  
    	        catch (java.util.regex.PatternSyntaxException a)  
    	        {  
    	            return;  
    	        }  
    	        sorter.setRowFilter(rf);  
 
    		if((JButton)e.getSource()==btna) 
			{ 
				Liste l=new Liste();
				l.setVisible(true);
				l.setSize(650,250);
 
				} 
    	}
 
    }
 
 
 
	     public class ListeListener implements ListSelectionListener
		{
			public void valueChanged(ListSelectionEvent e)
			{
				if(!e.getValueIsAdjusting())
				{  
 
				   table.getValueAt(table.getSelectedRow(),0);
				   table.getValueAt(table.getSelectedRow(),1);
				   table.getValueAt(table.getSelectedRow(),2);
				   table.getValueAt(table.getSelectedRow(),4);
				   table.getValueAt(table.getSelectedRow(),5);
				   table.getValueAt(table.getSelectedRow(),6);
				   table.getValueAt(table.getSelectedRow(),7);
				  // table.getValueAt(table.getSelectedRow(),8);	
 
					//InfosPersonne a= new InfosPersonne (data);
					//a.setVisible(true);
					//a.setSize(495,570);
					}
					}
			}
 
 
 
		public static void main(String[] args) {
			Liste li = new Liste();
			   li.setVisible(true);
			   li.setSize(650,250);		   			   	      
	}
 
	     }