changepass.java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package institute;

import java.awt.Color;
import java.awt.Toolkit;
import java.awt.event.WindowEvent;
import javax.swing.JOptionPane;
import java.sql.*;

/**
 *
 * @author Ironman
 */
public class changepass extends javax.swing.JFrame {
 connection C=new connection();
  public void close(){

WindowEvent winClosingEvent = new WindowEvent(this,WindowEvent.WINDOW_CLOSING);
Toolkit.getDefaultToolkit().getSystemEventQueue().postEvent(winClosingEvent);

}
    /**
     * Creates new form changepass
     */
    public changepass() {
        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">//GEN-BEGIN:initComponents
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        username = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();
        oldpassword = new javax.swing.JPasswordField();
        jButton1 = new javax.swing.JButton();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        newpassword = new javax.swing.JPasswordField();
        jLabel5 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setMaximumSize(new java.awt.Dimension(980, 580));
        setMinimumSize(new java.awt.Dimension(980, 580));
        getContentPane().setLayout(null);

        jLabel1.setFont(new java.awt.Font("Arial", 0, 18)); // NOI18N
        jLabel1.setText("Enter User Name");
        getContentPane().add(jLabel1);
        jLabel1.setBounds(315, 252, 163, 22);

        username.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                usernameActionPerformed(evt);
            }
        });
        getContentPane().add(username);
        username.setBounds(488, 252, 163, 22);

        jLabel2.setFont(new java.awt.Font("Arial", 0, 18)); // NOI18N
        jLabel2.setText("Old Password");
        getContentPane().add(jLabel2);
        jLabel2.setBounds(315, 300, 163, 22);
        getContentPane().add(oldpassword);
        oldpassword.setBounds(488, 302, 163, 22);

        jButton1.setBackground(new java.awt.Color(0, 0, 0));
        jButton1.setFont(new java.awt.Font("Tahoma", 2, 16)); // NOI18N
        jButton1.setForeground(new java.awt.Color(255, 255, 255));
        jButton1.setText("Password Update");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });
        getContentPane().add(jButton1);
        jButton1.setBounds(398, 467, 155, 29);

        jLabel3.setFont(new java.awt.Font("Tahoma", 0, 60)); // NOI18N
        jLabel3.setText("Change Password");
        getContentPane().add(jLabel3);
        jLabel3.setBounds(249, 24, 470, 73);

        jLabel4.setFont(new java.awt.Font("Arial", 0, 18)); // NOI18N
        jLabel4.setText("New Password");
        getContentPane().add(jLabel4);
        jLabel4.setBounds(315, 344, 163, 22);
        getContentPane().add(newpassword);
        newpassword.setBounds(488, 342, 163, 22);

        jLabel5.setIcon(new javax.swing.ImageIcon("C:\\Users\\Yash\\Music\\All Documents\\project folder\\05.jpg")); // NOI18N
        getContentPane().add(jLabel5);
        jLabel5.setBounds(0, 0, 980, 580);

        pack();
        setLocationRelativeTo(null);
    }// </editor-fold>//GEN-END:initComponents

    private void usernameActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_usernameActionPerformed
        // TODO add your handling code here:
    }//GEN-LAST:event_usernameActionPerformed

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
        
        if(username.getText().isEmpty() && oldpassword.getText().isEmpty() && newpassword.getText().isEmpty())
        {
             JOptionPane.showMessageDialog(null,"Please enter all details !! ","Error",JOptionPane.ERROR_MESSAGE);
            return;
        }
       
          
          
         try
       {
         
         String qry="select * from sign_in where userid='"+username.getText()+"' and pwd='"+oldpassword.getText()+"'";
        
         
         C.rs=C.stmt.executeQuery(qry);
         if(C.rs.next())
         {
                         
                   
         }
         else
         {
            JOptionPane.showMessageDialog(null,"Invalid username and password");
            username.setText(null);
            oldpassword.setText(null);
         }
         
           if(username.getText().isEmpty())
        {
             JOptionPane.showMessageDialog(null,"Please enter username ","Error",JOptionPane.ERROR_MESSAGE);
            return;
        }
         if(oldpassword.getText().isEmpty())
        {
             JOptionPane.showMessageDialog(null,"Please enter password ","Error",JOptionPane.ERROR_MESSAGE);
            return;
        }
          if(newpassword.getText().isEmpty())
        {
             JOptionPane.showMessageDialog(null,"Please enter New Password ","Error",JOptionPane.ERROR_MESSAGE);
            return;
        }
          String value1=newpassword.getText();
            
            
           String upqry="update sign_in set pwd='"+value1+"' where  userid='"+username.getText()+"'";
           // JOptionPane.showMessageDialog(this,upqry);
            C.stmt.executeUpdate(upqry);
            
             JOptionPane.showMessageDialog(null,"Password Updated");
       }
       catch(Exception e)
       {
           JOptionPane.showMessageDialog(this,e.toString());
           
       }
        
    }//GEN-LAST:event_jButton1ActionPerformed

    /**
     * @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(changepass.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(changepass.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(changepass.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(changepass.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 changepass().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JPasswordField newpassword;
    private javax.swing.JPasswordField oldpassword;
    private javax.swing.JTextField username;
    // End of variables declaration//GEN-END:variables
}