Bonjour les développeurs,
J'ai un souci avec une classe java, voila je vous explique, j'ai récupérer un 2 string, Mot de pass et Id, mais la comparaison ne se fait pas, ou plus tot la suite du programme ne marche pas, svp quelqu'un peut m'aider !!
voici le code
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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package Ulb;
import com.jgoodies.forms.layout.FormLayout;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ComponentAdapter;
import java.awt.event.KeyAdapter;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
 
import javax.swing.WindowConstants;
import javax.swing.SwingUtilities;
import java.sql.*;
import java.util.Arrays;
import java.awt.event.* ;
import javax.swing.JOptionPane;
 
 
 
/**
* This code was edited or generated using CloudGarden's Jigloo
* SWT/Swing GUI Builder, which is free for non-commercial
* use. If Jigloo is being used commercially (ie, by a corporation,
* company or business for any purpose whatever) then you
* should purchase a license for each developer using Jigloo.
* Please visit <a href="http://www.cloudgarden.com/" target="_blank">www.cloudgarden.com</a> for details.
* Use of Jigloo implies acceptance of these licensing terms.
* A COMMERCIAL LICENSE HAS NOT BEEN PURCHASED FOR
* THIS MACHINE, SO JIGLOO OR THIS CODE CANNOT BE USED
* LEGALLY FOR ANY CORPORATE OR COMMERCIAL PURPOSE.
*/
public class Acceuil extends javax.swing.JFrame {
    private JLabel jLabel1;
    private JLabel jLabel2;
    private JLabel jLabel3;
    private JLabel jLabel4;
    private JButton jButton1;
    private ButtonGroup buttonGroup1;
    private JPasswordField jPasswordField1;
    private JTextField jTextField1;
    private JButton jButton2;
    private JRadioButton jRadioButton2;
    private JRadioButton jRadioButton1;
 
    /**
    * Auto-generated main method to display this JFrame
    */
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                Acceuil inst = new Acceuil();
                inst.setLocationRelativeTo(null);
                inst.setVisible(true);
 
            }
        });
    }
 
    public Acceuil() {
        super();
        initGUI();
 
    }
 
    private void initGUI() {
        try {
            GridBagLayout thisLayout = new GridBagLayout();
            thisLayout.rowWeights = new double[] {0.1, 0.1, 0.1, 0.1};
            thisLayout.rowHeights = new int[] {7, 7, 7, 7};
            thisLayout.columnWeights = new double[] {0.1, 0.1, 0.1, 0.1};
            thisLayout.columnWidths = new int[] {7, 7, 7, 7};
            getContentPane().setLayout(thisLayout);
            this.setTitle("Fenetre Principale");
            this.setResizable(false);
            setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
 
            {
                jLabel1 = new JLabel();
                getContentPane().add(jLabel1, new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
                jLabel1.setText("Admin");
            }
            {
                jLabel2 = new JLabel();
                getContentPane().add(jLabel2, new GridBagConstraints(2, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
                jLabel2.setText("User");
            }
            {
                jRadioButton1 = new JRadioButton();
                getContentPane().add(jRadioButton1, new GridBagConstraints(1, 1, 1, 1, 0.0, 0.0, GridBagConstraints.NORTH, GridBagConstraints.HORIZONTAL, new Insets(1, 0, 0, 0), 0, 0));
                jRadioButton1.setText("");
            }
            {
                jRadioButton2 = new JRadioButton();
                getContentPane().add(jRadioButton2, new GridBagConstraints(3, 1, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
                jRadioButton2.setText("");
            }
            {
                jLabel3 = new JLabel();
                getContentPane().add(jLabel3, new GridBagConstraints(0, 2, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
                jLabel3.setText("Id");
            }
            {
                jLabel4 = new JLabel();
                getContentPane().add(jLabel4, new GridBagConstraints(2, 2, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
                jLabel4.setText("PassW");
            }
            {
                jButton1 = new JButton();
                getContentPane().add(jButton1, new GridBagConstraints(1, 3, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
                jButton1.setText("Ok");
                jButton1.addActionListener(new java.awt.event.ActionListener() {
                    public void actionPerformed(java.awt.event.ActionEvent e) {    
                           Connection conn = null;
                           Statement instruction = null;
                           ResultSet rs = null;
 
 
 
                           String nom = jTextField1.getText();
                           String pass = jPasswordField1.getText(); 
                           String url = "jdbc:mysql://localhost/projetUlb";
                           String login = "root";
                           String passw = "root";
 
                           try{
                               if(jRadioButton1.isSelected())
                                     {
                                      System.out.print(nom);
                                      System.out.print(pass);
                                      if (nom.equals("") || pass.equals(""))
                                      {
 
                                          jButton1.setEnabled(false); 
                                        JOptionPane.showMessageDialog(null,"");
                                        jTextField1.setText("");
                                           jPasswordField1.setText("");
                                           jButton1.setEnabled(true);
                                      }
                                     else 
                                          if (nom.equals(login) && pass.equals(passw))
                                       {
                                          Administrateur admis = new Administrateur();
                                        admis.setVisible(true);
                                        }
 
                                       }
 
                               else if(jRadioButton2.isSelected())
                                {
 
                                  try{
                                  Class.forName("com.mysql.jdbc.Driver");
                                  }catch(Exception ex){}
                                  conn = DriverManager.getConnection(url,login,passw);
                                  instruction = conn.createStatement();
                                  rs = instruction.executeQuery("SELECT user,password FROM projetulb.compte ");
 
                              while(rs.next())
                                  {
                                      String id,pas;
                                      id = rs.getString(2);
                                      pas = rs.getString(3);
                                      if (nom.equals(id) && pass.equals(pas))
                                      {
                                           new User().setVisible(true);
                                      }
                             }
                               }
                           rs.close();
                           instruction.close();
                           conn.close();
                            }
 
                       catch(Exception e1)
                       {
                       System.out.println(e1);  
                    }                                        
 
                           finally{
                               if(instruction !=null){try{instruction.close();}catch(Exception e1){e1.printStackTrace();}}
                               if(instruction !=null){try{instruction.close();}catch(Exception e1){e1.printStackTrace();}}
                           }
                    }
                });
 
            }
            {
                jButton2 = new JButton();
                getContentPane().add(jButton2, new GridBagConstraints(3, 3, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
                jButton2.setText("Cancel");
                jButton2.addActionListener(new java.awt.event.ActionListener() {
                    public void actionPerformed(java.awt.event.ActionEvent e) {
 
                    }
                });
 
            }            
            {
                jTextField1 = new JTextField();
                getContentPane().add(jTextField1, new GridBagConstraints(1, 2, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
                jTextField1.setText("         ");
            }
            {
                jPasswordField1 = new JPasswordField();
                getContentPane().add(jPasswordField1, new GridBagConstraints(3, 2, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
                jPasswordField1.setText("        ");
                jPasswordField1.setEchoChar('*');
 
 
            }    
            {
                ButtonGroup buttonGroup1 = new ButtonGroup();
                buttonGroup1.add(jRadioButton1);
                buttonGroup1.add(jRadioButton2);
            }
 
            pack();
        } catch (Exception e) {
            e.printStackTrace();
        }
 
    }    
 
}

Pour la classe Administrateur c'est une simple JFrame

Mercii