diff --git a/.idea/.gitignore b/.idea/.gitignore
index 13566b8..a9d7db9 100644
--- a/.idea/.gitignore
+++ b/.idea/.gitignore
@@ -6,3 +6,5 @@
 # Datasource local storage ignored files
 /dataSources/
 /dataSources.local.xml
+# GitHub Copilot persisted chat sessions
+/copilot/chatSessions
diff --git a/src/ExercicesTP/CRUD/DemandeDAO.java b/src/ExercicesTP/CRUD/DemandeDAO.java
new file mode 100644
index 0000000..7c4b342
--- /dev/null
+++ b/src/ExercicesTP/CRUD/DemandeDAO.java
@@ -0,0 +1,4 @@
+package ExercicesTP.CRUD;
+
+public class DemandeDAO {
+}
diff --git a/src/ExercicesTP/CRUD/EtudiantDAO.java b/src/ExercicesTP/CRUD/EtudiantDAO.java
index 6805069..969934d 100644
--- a/src/ExercicesTP/CRUD/EtudiantDAO.java
+++ b/src/ExercicesTP/CRUD/EtudiantDAO.java
@@ -7,20 +7,21 @@
 import java.sql.*;
 
 
-// TODO: Test this class
 public class EtudiantDAO implements EtudiantDaoCRUD{
 
 
-    Connection con = null;
     Statement st = null;
-    public EtudiantDAO() {
-        con = MyConnexion.getConnection(Config.URL, Config.USERNAME, Config.PASSWORD);
+    Connection con = null;
+
+    public EtudiantDAO(Connection con) {
         try {
             st = con.createStatement();
+            this.con = con;
         } catch (SQLException e) {
             throw new RuntimeException(e);
         }
     }
+
     @Override
     public void addEtudiant(Etudiant etudiant) {
         PreparedStatement ps = null;
@@ -76,7 +77,7 @@ public Etudiant getEtudiant(int id) {
             ResultSet rs = ps.executeQuery();
             if (rs.next()) {
                 return new Etudiant(rs.getInt("id"), rs.getString("nom"), rs.getString("prenom"), rs.getString("filiere"), rs.getInt("niveau"), rs.getInt("groupe"));
-            }else{
+            } else {
                 return null;
             }
         } catch (SQLException e) {
@@ -97,6 +98,7 @@ public Etudiant[] getAllEtudiants() {
             return etudiants;
         } catch (SQLException e) {
             throw new RuntimeException(e);
+
         }
     }
 
diff --git a/src/ExercicesTP/CRUD/FormationDAO.java b/src/ExercicesTP/CRUD/FormationDAO.java
index 02e746a..fd862f9 100644
--- a/src/ExercicesTP/CRUD/FormationDAO.java
+++ b/src/ExercicesTP/CRUD/FormationDAO.java
@@ -1,8 +1,6 @@
 package ExercicesTP.CRUD;
 
 import ExercicesTP.Formation;
-import ExercicesTP.Config;
-import TP_Base.MyConnexion;
 import ExercicesTP.interfaces.FormationDaoCRUD;
 import java.sql.*;
 
@@ -10,10 +8,10 @@ public class FormationDAO implements FormationDaoCRUD {
 
     Connection con = null;
     Statement st = null;
-    public FormationDAO() {
-        con = MyConnexion.getConnection(Config.URL, Config.USERNAME, Config.PASSWORD);
+    public FormationDAO(Connection con){
         try {
-            st = con.createStatement();
+        this.con = con;
+        st = con.createStatement();
         } catch (SQLException e) {
             throw new RuntimeException(e);
         }
diff --git a/src/ExercicesTP/Helpers/TableModelDemande.java b/src/ExercicesTP/Helpers/TableModelDemande.java
new file mode 100644
index 0000000..e8249e4
--- /dev/null
+++ b/src/ExercicesTP/Helpers/TableModelDemande.java
@@ -0,0 +1,142 @@
+package ExercicesTP.Helpers;
+
+import ExercicesTP.CRUD.EtudiantDAO;
+
+
+import javax.swing.*;
+import javax.swing.table.AbstractTableModel;
+import java.sql.Date;
+import java.sql.ResultSet;
+import java.sql.ResultSetMetaData;
+import java.sql.SQLException;
+import java.util.ArrayList;
+
+public class TableModelDemande extends AbstractTableModel {
+    ArrayList<Object[]> data;
+    ResultSetMetaData rsmd;
+    EtudiantDAO dao;
+
+    public TableModelDemande(ResultSet rs, EtudiantDAO dao){
+        data = new ArrayList<Object[]>();
+        this.dao = dao;
+        try {
+            rsmd = rs.getMetaData();
+
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+        try {
+
+            while (rs.next()) {
+                Object[] ligne = new Object[rsmd.getColumnCount()];
+                for(int i = 0;i<rsmd.getColumnCount();i++){
+                    ligne[i] = rs.getObject(i+1);
+                }
+                data.add(ligne);
+            }
+        }catch(SQLException SQLErr){
+            System.out.println("Error "+SQLErr);
+        }
+
+
+    }
+
+    public void updateTableWithNewResultSet(ResultSet rs){
+        data = new ArrayList<Object[]>();
+        try {
+            rsmd = rs.getMetaData();
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+        try {
+            while (rs.next()) {
+                Object[] ligne = new Object[rsmd.getColumnCount()];
+                for(int i = 0;i<rsmd.getColumnCount();i++){
+                    ligne[i] = rs.getObject(i+1);
+                }
+                data.add(ligne);
+            }
+        }catch(SQLException SQLErr){
+            System.out.println("Error "+SQLErr);
+        }
+        fireTableDataChanged();
+    }
+
+
+    @Override
+    public int getRowCount() {
+        return data.size();
+    }
+
+    @Override
+    public int getColumnCount() {
+        try {
+            return rsmd.getColumnCount();
+        } catch (SQLException e) {
+            return 0;
+        }
+    }
+
+    @Override
+    public Object getValueAt(int rowIndex, int columnIndex) {
+        return data.get(rowIndex)[columnIndex];
+    }
+
+    @Override
+    public String getColumnName(int column) {
+        try {
+            return rsmd.getColumnName(column + 1);
+        } catch (SQLException e) {
+            return null;
+        }
+    }
+
+    @Override
+    public boolean isCellEditable(int rowIndex, int columnIndex) {
+        return false;
+    }
+    int colmunNameToIndex(String colmunName){
+        for (int i = 0; i < getColumnCount(); i++) {
+            if(getColumnName(i).equalsIgnoreCase(colmunName)){
+                return i;
+            }
+        }
+        return -1;
+    }
+    Boolean stringToBool(String str){
+        return str.equalsIgnoreCase("true");
+    }
+
+    @Override
+    public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
+    }
+
+
+    public void insertFormation(String nom, String lieu, Date date){
+        this.dao.addEtudiant(new Formation(id, titre, dateF, lieu,certification));
+        data.add(new Object[]{id, titre, dateF, lieu, certification});
+        fireTableDataChanged();
+        JOptionPane.showMessageDialog(null, "done");
+    }
+
+
+
+    public void supprimerFormation(int id){
+        int option = JOptionPane.showConfirmDialog(null, "est ce que vous etes sure ?");
+        if(option == JOptionPane.NO_OPTION || option == JOptionPane.CANCEL_OPTION){
+            JOptionPane.showMessageDialog(null, "annulé");
+            return;
+        }
+
+        this.dao.deleteFormation(id);
+        for(int i = 0; i < data.size(); i++){
+            if((int)data.get(i)[colmunNameToIndex("id")] == id){
+                data.remove(i);
+                fireTableDataChanged();
+                JOptionPane.showMessageDialog(null, "done");
+                return;
+            }
+        }
+
+    }
+}
diff --git a/src/ExercicesTP/Helpers/TableModel.java b/src/ExercicesTP/Helpers/TableModelFormation.java
similarity index 96%
rename from src/ExercicesTP/Helpers/TableModel.java
rename to src/ExercicesTP/Helpers/TableModelFormation.java
index fe098a4..ec1511f 100644
--- a/src/ExercicesTP/Helpers/TableModel.java
+++ b/src/ExercicesTP/Helpers/TableModelFormation.java
@@ -11,14 +11,13 @@
 import java.sql.ResultSetMetaData;
 import java.sql.SQLException;
 import java.util.ArrayList;
-import java.util.Objects;
 
-public class TableModel extends AbstractTableModel {
+public class TableModelFormation extends AbstractTableModel {
     ArrayList<Object[]> data;
     ResultSetMetaData rsmd;
     FormationDAO dao;
 
-    public TableModel(ResultSet rs, FormationDAO dao){
+    public TableModelFormation(ResultSet rs, FormationDAO dao){
         data = new ArrayList<Object[]>();
         this.dao = dao;
         try {
diff --git a/src/ExercicesTP/IHM/IHMAffichageFormation.java b/src/ExercicesTP/IHM/IHMAffichageFormation.java
index d23f423..adbf760 100644
--- a/src/ExercicesTP/IHM/IHMAffichageFormation.java
+++ b/src/ExercicesTP/IHM/IHMAffichageFormation.java
@@ -2,7 +2,7 @@
 
 import javax.swing.*;
 import ExercicesTP.CRUD.FormationDAO;
-import ExercicesTP.Helpers.TableModel;
+import ExercicesTP.Helpers.TableModelFormation;
 
 import java.awt.*;
 
@@ -12,7 +12,7 @@ public class IHMAffichageFormation extends JInternalFrame {
     private JCheckBox certificationCheckbox;
     private JButton rechercheButton, cancelButton, modifierButton, supprimerButton;
     public FormationDAO formationDAO;
-    public TableModel model;
+    public TableModelFormation model;
     JTable jt_Formation;
 
 
@@ -35,7 +35,7 @@ public void initilizeComponents() {
 
         jt_Formation = new JTable();
         String rq = "SELECT * FROM FORMATION;";
-        model = new TableModel(formationDAO.selection(rq), formationDAO);
+        model = new TableModelFormation(formationDAO.selection(rq), formationDAO);
         jt_Formation.setModel(model);
 
 
diff --git a/src/ExercicesTP/IHM/IHMRechercheEtudiant.java b/src/ExercicesTP/IHM/IHMRechercheEtudiant.java
new file mode 100644
index 0000000..56a8501
--- /dev/null
+++ b/src/ExercicesTP/IHM/IHMRechercheEtudiant.java
@@ -0,0 +1,127 @@
+package ExercicesTP.IHM;
+
+import javax.swing.*;
+import java.awt.*;
+
+import ExercicesTP.CRUD.EtudiantDAO;
+import ExercicesTP.Helpers.TableModelFormation;
+
+public class IHMRechercheEtudiant extends JInternalFrame {
+
+    private JLabel numEtdLabel, nomLabel, prenomLabel, filiereLabel, niveauLabel, groupeLabel, listeDemandesLabel;
+    private JTextField numEtdField, nomField, prenomField ;
+    private  JComboBox<String> filiereComboBox,demandesBox;
+    private JComboBox<Integer> niveauComboBox, groupeComboBox;
+    private JButton ajouterDemandeButton, supprimerDemandeButton, rechercheButton, cancelButton, modifierButton, supprimerButton;
+    public EtudiantDAO etudiantDAO;
+    public TableModelFormation model;
+    JTable jt_Etudiant;
+
+    public IHMRechercheEtudiant(EtudiantDAO dao) {
+        super("Recherche d'une formation");
+        initializeComponents();
+        createLayout();
+        addEventListeners();
+        this.etudiantDAO = dao;
+        this.setVisible(true);
+    }
+
+    private void initializeComponents() {
+        numEtdLabel = new JLabel("Numéro étudiant :");
+        nomLabel = new JLabel("Nom :");
+        prenomLabel = new JLabel("Prénom :");
+        filiereLabel = new JLabel("Filière :");
+        niveauLabel = new JLabel("Niveau :");
+        groupeLabel = new JLabel("Groupe :");
+        listeDemandesLabel = new JLabel("Liste des demandes :");
+
+        numEtdField = new JTextField(15);
+        nomField = new JTextField(20);
+        prenomField = new JTextField(20);
+
+        // Sample data for comboboxes (replace with actual data source)
+        filiereComboBox = new JComboBox<>(new String[]{"FIA", "Licence Sc Info", "Licence Info de Gest", "Maths Info", "Physique Info", "Chimie Info", "Bio Info", "Eco Info", "Génie Info", "Info de Gestion", "Info de Comm"});
+        niveauComboBox = new JComboBox<>(new Integer[]{1, 2, 3});
+        groupeComboBox = new JComboBox<>(new Integer[]{1, 2, 3, 4, 5});
+
+        ajouterDemandeButton = new JButton("Ajouter demande");
+        supprimerDemandeButton = new JButton("Supprimer demande");
+        rechercheButton = new JButton("Rechercher");
+        modifierButton = new JButton("Modifier");
+        supprimerButton = new JButton("Supprimer");
+        cancelButton = new JButton("Annuler");
+
+        demandesBox = new JComboBox<String>();
+        listeDemandesLabel = new JLabel("Liste des demandes :");
+        jt_Etudiant = new JTable();
+        String rq = "SELECT titre,lieu,datef FROM FORMATION f,demandeetd d,ETUDIANT e WHERE (e.id=d.idEtudiant) and (f.idF = d.idFormation) ;";
+        model = new TableModelFormation(etudiantDAO.selection(rq), etudiantDAO);
+        jt_Etudiant.setModel(model);
+
+    }
+
+    private void createLayout() {
+        JPanel panel = new JPanel(new GridBagLayout());
+        GridBagConstraints c = new GridBagConstraints();
+        JPanel panel2 = new JPanel(new GridBagLayout());
+
+        // Add labels and corresponding components
+        c.fill = GridBagConstraints.HORIZONTAL;
+        addComponent(panel, numEtdLabel, c, 0, 0, 1, 1);
+        addComponent(panel, numEtdField, c, 1, 0, 2, 1);
+        addComponent(panel, nomLabel, c, 0, 1, 1, 1);
+        addComponent(panel, nomField, c, 1, 1, 2, 1);
+        addComponent(panel, prenomLabel, c, 0, 2, 1, 1);
+        addComponent(panel, prenomField, c, 1, 2, 2, 1);
+        addComponent(panel, filiereLabel, c, 0, 3, 1, 1);
+        addComponent(panel, filiereComboBox, c, 1, 3, 2, 1);
+        addComponent(panel, niveauLabel, c, 0, 4, 1, 1);
+        addComponent(panel, niveauComboBox, c, 1, 4, 1, 1);
+        addComponent(panel, groupeLabel, c, 0, 5, 1, 1);
+        addComponent(panel, groupeComboBox, c, 1, 5, 1, 1);
+
+        addComponent(panel2, rechercheButton, c, 5, 0, 1, 1);
+        addComponent(panel2, modifierButton, c, 5, 1, 1, 1);
+        addComponent(panel2, supprimerButton, c, 5, 2, 1, 1);
+        addComponent(panel2, cancelButton, c, 5, 3, 1, 1);
+
+        addComponent(panel, ajouterDemandeButton, c, 0, 7, 1, 1);
+        addComponent(panel, supprimerDemandeButton, c, 1, 7, 1, 1);
+        addComponent(panel, demandesBox, c, 2,7,1, 1);
+
+        addComponent(panel, listeDemandesLabel, c, 0, 10, 1, 1);
+        addComponent(panel, jt_Etudiant, c, 2, 10, 6, 1);
+
+        // Add buttons
+        getContentPane().add(panel);
+        getContentPane().add(panel2);
+        getContentPane().setLayout(new FlowLayout());
+        modifierButton.setEnabled(false);
+        supprimerButton.setEnabled(false);
+        rechercheButton.setEnabled(false);
+
+
+
+        setSize(700,400);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        setVisible(true);
+    }
+
+    private void addComponent(JPanel panel, JComponent component, GridBagConstraints c, int x, int y, int width, int height) {
+        c.gridx = x;
+        c.gridy = y;
+        c.gridwidth = width;
+        c.gridheight = height;
+        panel.add(component, c);
+    }
+
+    private void clearInputs() {
+      //TODO implement
+    }
+
+    private void addEventListeners() {
+       //TODO implement
+    }
+
+
+}
diff --git a/src/ExercicesTP/IHM/Principale.java b/src/ExercicesTP/IHM/Principale.java
index 36047bc..acf2a2e 100644
--- a/src/ExercicesTP/IHM/Principale.java
+++ b/src/ExercicesTP/IHM/Principale.java
@@ -3,7 +3,7 @@
 import ExercicesTP.CRUD.EtudiantDAO;
 import ExercicesTP.CRUD.FormationDAO;
 import ExercicesTP.Etudiant;
-import TP_Base.Config;
+import ExercicesTP.Config;
 import TP_Base.MyConnexion;
 
 import javax.swing.*;
@@ -32,6 +32,8 @@ public class Principale extends JFrame {
     JDesktopPane desktop;
     FormationDAO formationDao;
     EtudiantDAO etudiantDAO;
+    Connection con = null;
+
     Principale() {
         menuBar = new JMenuBar();
         this.setTitle("Gestion des formation");
@@ -40,7 +42,7 @@ public class Principale extends JFrame {
 
         desktop = new JDesktopPane();
         this.add(desktop);
-
+        con = MyConnexion.getConnection(Config.URL, Config.USERNAME, Config.PASSWORD);
         menuFormation = new JMenu("Formation");
         menuEtudiant = new JMenu("Etudiant");
         menuEnseignant = new JMenu("Enseignant");
@@ -75,8 +77,8 @@ public class Principale extends JFrame {
         menuBar.add(menuEnseignant);
         this.setJMenuBar(menuBar);
         this.setVisible(true);
-        formationDao = new FormationDAO();
-        etudiantDAO = new EtudiantDAO();
+        formationDao = new FormationDAO(con);
+        etudiantDAO = new EtudiantDAO(con);
         // listenners
         menuItemAjouteurFormation.addActionListener(new ActionListener() {
             @Override
@@ -108,6 +110,13 @@ public void actionPerformed(ActionEvent e) {
                 desktop.add(ihmAjoutEtud);
             }
         });
+        menuItemRechercherEtudiant.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                IHMRechercheEtudiant ihmRechercheEtud = new IHMRechercheEtudiant(etudiantDAO);
+                desktop.add(ihmRechercheEtud);
+            }
+        });