diff --git a/src/registrazionepalestra/RegistrazionePalestra.form b/src/registrazionepalestra/RegistrazionePalestra.form
index d9a6c20..1fddae8 100644
--- a/src/registrazionepalestra/RegistrazionePalestra.form
+++ b/src/registrazionepalestra/RegistrazionePalestra.form
@@ -82,7 +82,7 @@
                       <Component id="jScrollPane1" alignment="1" min="-2" pref="191" max="-2" attributes="0"/>
                       <Group type="103" alignment="0" groupAlignment="1" max="-2" attributes="0">
                           <Component id="pnlCorsi" alignment="0" pref="191" max="32767" attributes="0"/>
-                          <Component id="jComboBox1" alignment="0" pref="191" max="32767" attributes="0"/>
+                          <Component id="cmbCitta" alignment="0" pref="191" max="32767" attributes="0"/>
                       </Group>
                   </Group>
               </Group>
@@ -128,7 +128,7 @@
               <EmptySpace max="-2" attributes="0"/>
               <Group type="103" groupAlignment="3" attributes="0">
                   <Component id="lblCittà" alignment="3" min="-2" max="-2" attributes="0"/>
-                  <Component id="jComboBox1" alignment="3" min="-2" max="-2" attributes="0"/>
+                  <Component id="cmbCitta" alignment="3" min="-2" max="-2" attributes="0"/>
               </Group>
               <EmptySpace max="-2" attributes="0"/>
               <Group type="103" groupAlignment="1" attributes="0">
@@ -210,6 +210,7 @@
     <Component class="javax.swing.JTextField" name="txtCodiceFiscale">
       <Events>
         <EventHandler event="focusGained" listener="java.awt.event.FocusListener" parameters="java.awt.event.FocusEvent" handler="txtCodiceFiscaleFocusGained"/>
+        <EventHandler event="keyReleased" listener="java.awt.event.KeyListener" parameters="java.awt.event.KeyEvent" handler="txtCodiceFiscaleKeyReleased"/>
       </Events>
     </Component>
     <Component class="javax.swing.JTextField" name="txtEmail">
@@ -222,7 +223,7 @@
         <EventHandler event="focusGained" listener="java.awt.event.FocusListener" parameters="java.awt.event.FocusEvent" handler="txtPasswordFocusGained"/>
       </Events>
     </Component>
-    <Component class="javax.swing.JComboBox" name="jComboBox1">
+    <Component class="javax.swing.JComboBox" name="cmbCitta">
       <Properties>
         <Property name="model" type="javax.swing.ComboBoxModel" editor="org.netbeans.modules.form.editors2.ComboBoxModelEditor">
           <StringArray count="6">
diff --git a/src/registrazionepalestra/RegistrazionePalestra.java b/src/registrazionepalestra/RegistrazionePalestra.java
index 3900b4d..8b28436 100644
--- a/src/registrazionepalestra/RegistrazionePalestra.java
+++ b/src/registrazionepalestra/RegistrazionePalestra.java
@@ -8,7 +8,10 @@ import javax.swing.BorderFactory;
 import javax.swing.JOptionPane;
 import javax.swing.border.LineBorder;
 import java.awt.Color;
-import java.util.Arrays;
+import java.io.BufferedWriter;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.regex.Pattern;
 
 /**
  *
@@ -33,7 +36,8 @@ public class RegistrazionePalestra extends javax.swing.JFrame {
      */
     @SuppressWarnings("unchecked")
     // <editor-fold defaultstate="collapsed" desc="Generated
-    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
+    // <editor-fold defaultstate="collapsed" desc="Generated
+    // Code">//GEN-BEGIN:initComponents
     private void initComponents() {
 
         Sesso = new javax.swing.ButtonGroup();
@@ -51,7 +55,7 @@ public class RegistrazionePalestra extends javax.swing.JFrame {
         txtCodiceFiscale = new javax.swing.JTextField();
         txtEmail = new javax.swing.JTextField();
         txtPassword = new javax.swing.JPasswordField();
-        jComboBox1 = new javax.swing.JComboBox<>();
+        cmbCitta = new javax.swing.JComboBox<>();
         jScrollPane1 = new javax.swing.JScrollPane();
         txtaNote = new javax.swing.JTextArea();
         btnRegistra = new javax.swing.JButton();
@@ -103,6 +107,11 @@ public class RegistrazionePalestra extends javax.swing.JFrame {
                 txtCodiceFiscaleFocusGained(evt);
             }
         });
+        txtCodiceFiscale.addKeyListener(new java.awt.event.KeyAdapter() {
+            public void keyReleased(java.awt.event.KeyEvent evt) {
+                txtCodiceFiscaleKeyReleased(evt);
+            }
+        });
 
         txtEmail.addFocusListener(new java.awt.event.FocusAdapter() {
             public void focusGained(java.awt.event.FocusEvent evt) {
@@ -116,7 +125,8 @@ public class RegistrazionePalestra extends javax.swing.JFrame {
             }
         });
 
-        jComboBox1.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "Roma", "Londra", "Parigi", "Berlino", "Mosca", "Tjumen" }));
+        cmbCitta.setModel(new javax.swing.DefaultComboBoxModel<>(
+                new String[] { "Roma", "Londra", "Parigi", "Berlino", "Mosca", "Tjumen" }));
 
         txtaNote.setColumns(20);
         txtaNote.setLineWrap(true);
@@ -142,24 +152,22 @@ public class RegistrazionePalestra extends javax.swing.JFrame {
         javax.swing.GroupLayout pnlCorsiLayout = new javax.swing.GroupLayout(pnlCorsi);
         pnlCorsi.setLayout(pnlCorsiLayout);
         pnlCorsiLayout.setHorizontalGroup(
-            pnlCorsiLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-            .addGroup(pnlCorsiLayout.createSequentialGroup()
-                .addComponent(chkYoga)
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                .addComponent(chkPilates)
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                .addComponent(chkFitness)
-                .addGap(0, 0, Short.MAX_VALUE))
-        );
+                pnlCorsiLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                        .addGroup(pnlCorsiLayout.createSequentialGroup()
+                                .addComponent(chkYoga)
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addComponent(chkPilates)
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addComponent(chkFitness)
+                                .addGap(0, 0, Short.MAX_VALUE)));
         pnlCorsiLayout.setVerticalGroup(
-            pnlCorsiLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, pnlCorsiLayout.createSequentialGroup()
-                .addGap(0, 0, Short.MAX_VALUE)
-                .addGroup(pnlCorsiLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
-                    .addComponent(chkYoga)
-                    .addComponent(chkPilates)
-                    .addComponent(chkFitness)))
-        );
+                pnlCorsiLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, pnlCorsiLayout.createSequentialGroup()
+                                .addGap(0, 0, Short.MAX_VALUE)
+                                .addGroup(pnlCorsiLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+                                        .addComponent(chkYoga)
+                                        .addComponent(chkPilates)
+                                        .addComponent(chkFitness))));
 
         Sesso.add(radSessoF);
         radSessoF.setText("F");
@@ -176,126 +184,167 @@ public class RegistrazionePalestra extends javax.swing.JFrame {
         javax.swing.GroupLayout pnlSessoLayout = new javax.swing.GroupLayout(pnlSesso);
         pnlSesso.setLayout(pnlSessoLayout);
         pnlSessoLayout.setHorizontalGroup(
-            pnlSessoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, pnlSessoLayout.createSequentialGroup()
-                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
-                .addComponent(radSessoM)
-                .addGap(18, 18, 18)
-                .addComponent(radSessoF)
-                .addGap(18, 18, 18)
-                .addComponent(radSessoNB)
-                .addContainerGap())
-        );
+                pnlSessoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, pnlSessoLayout.createSequentialGroup()
+                                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
+                                .addComponent(radSessoM)
+                                .addGap(18, 18, 18)
+                                .addComponent(radSessoF)
+                                .addGap(18, 18, 18)
+                                .addComponent(radSessoNB)
+                                .addContainerGap()));
         pnlSessoLayout.setVerticalGroup(
-            pnlSessoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-            .addGroup(pnlSessoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
-                .addComponent(radSessoM)
-                .addComponent(radSessoF)
-                .addComponent(radSessoNB))
-        );
+                pnlSessoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                        .addGroup(pnlSessoLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+                                .addComponent(radSessoM)
+                                .addComponent(radSessoF)
+                                .addComponent(radSessoNB)));
 
         javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
         getContentPane().setLayout(layout);
         layout.setHorizontalGroup(
-            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-            .addGroup(layout.createSequentialGroup()
-                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-                    .addComponent(lblNome)
-                    .addComponent(lblCognome)
-                    .addComponent(lblCodiceFiscale)
-                    .addComponent(lblEmail)
-                    .addComponent(lblPassword)
-                    .addComponent(lblSesso))
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-                    .addGroup(layout.createSequentialGroup()
-                        .addGap(35, 35, 35)
-                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
-                            .addComponent(txtNome, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 191, Short.MAX_VALUE)
-                            .addComponent(txtCognome, javax.swing.GroupLayout.Alignment.LEADING)
-                            .addComponent(txtCodiceFiscale, javax.swing.GroupLayout.Alignment.LEADING)
-                            .addComponent(txtEmail, javax.swing.GroupLayout.Alignment.LEADING)
-                            .addComponent(txtPassword, javax.swing.GroupLayout.Alignment.LEADING)))
-                    .addGroup(layout.createSequentialGroup()
-                        .addGap(51, 51, 51)
-                        .addComponent(pnlSesso, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
-                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
-            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-                    .addGroup(layout.createSequentialGroup()
-                        .addContainerGap(9, Short.MAX_VALUE)
-                        .addComponent(btnRegistra)
-                        .addGap(35, 35, 35))
-                    .addGroup(layout.createSequentialGroup()
-                        .addContainerGap()
-                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-                            .addComponent(lblCittà)
-                            .addComponent(lblCorsi)
-                            .addComponent(lblNote))
-                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-                    .addGroup(layout.createSequentialGroup()
-                        .addComponent(btnCancella)
-                        .addGap(41, 41, 41)
-                        .addComponent(btnChiudi))
-                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
-                        .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 191, javax.swing.GroupLayout.PREFERRED_SIZE)
-                        .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
-                            .addComponent(pnlCorsi, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.PREFERRED_SIZE, 191, Short.MAX_VALUE)
-                            .addComponent(jComboBox1, javax.swing.GroupLayout.Alignment.LEADING, 0, 191, Short.MAX_VALUE))))
-                .addContainerGap())
-        );
+                layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                        .addGroup(layout.createSequentialGroup()
+                                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                                        .addComponent(lblNome)
+                                        .addComponent(lblCognome)
+                                        .addComponent(lblCodiceFiscale)
+                                        .addComponent(lblEmail)
+                                        .addComponent(lblPassword)
+                                        .addComponent(lblSesso))
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                                        .addGroup(layout.createSequentialGroup()
+                                                .addGap(35, 35, 35)
+                                                .addGroup(layout
+                                                        .createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING,
+                                                                false)
+                                                        .addComponent(txtNome,
+                                                                javax.swing.GroupLayout.Alignment.LEADING,
+                                                                javax.swing.GroupLayout.DEFAULT_SIZE, 191,
+                                                                Short.MAX_VALUE)
+                                                        .addComponent(txtCognome,
+                                                                javax.swing.GroupLayout.Alignment.LEADING)
+                                                        .addComponent(txtCodiceFiscale,
+                                                                javax.swing.GroupLayout.Alignment.LEADING)
+                                                        .addComponent(txtEmail,
+                                                                javax.swing.GroupLayout.Alignment.LEADING)
+                                                        .addComponent(txtPassword,
+                                                                javax.swing.GroupLayout.Alignment.LEADING)))
+                                        .addGroup(layout.createSequentialGroup()
+                                                .addGap(51, 51, 51)
+                                                .addComponent(pnlSesso, javax.swing.GroupLayout.PREFERRED_SIZE,
+                                                        javax.swing.GroupLayout.DEFAULT_SIZE,
+                                                        javax.swing.GroupLayout.PREFERRED_SIZE)))
+                                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
+                        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                                        .addGroup(layout.createSequentialGroup()
+                                                .addContainerGap(9, Short.MAX_VALUE)
+                                                .addComponent(btnRegistra)
+                                                .addGap(35, 35, 35))
+                                        .addGroup(layout.createSequentialGroup()
+                                                .addContainerGap()
+                                                .addGroup(layout
+                                                        .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                                                        .addComponent(lblCittà)
+                                                        .addComponent(lblCorsi)
+                                                        .addComponent(lblNote))
+                                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED,
+                                                        javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                                        .addGroup(layout.createSequentialGroup()
+                                                .addComponent(btnCancella)
+                                                .addGap(41, 41, 41)
+                                                .addComponent(btnChiudi))
+                                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
+                                                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 191,
+                                                        javax.swing.GroupLayout.PREFERRED_SIZE)
+                                                .addGroup(javax.swing.GroupLayout.Alignment.LEADING,
+                                                        layout.createParallelGroup(
+                                                                javax.swing.GroupLayout.Alignment.TRAILING, false)
+                                                                .addComponent(pnlCorsi,
+                                                                        javax.swing.GroupLayout.Alignment.LEADING,
+                                                                        javax.swing.GroupLayout.PREFERRED_SIZE, 191,
+                                                                        Short.MAX_VALUE)
+                                                                .addComponent(cmbCitta,
+                                                                        javax.swing.GroupLayout.Alignment.LEADING, 0,
+                                                                        191, Short.MAX_VALUE))))
+                                .addContainerGap()));
         layout.setVerticalGroup(
-            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-            .addGroup(layout.createSequentialGroup()
-                .addContainerGap()
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
-                    .addComponent(lblNome)
-                    .addComponent(txtNome, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
-                    .addComponent(txtCognome, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
-                    .addComponent(lblCognome))
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
-                    .addComponent(txtCodiceFiscale, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
-                    .addComponent(lblCodiceFiscale))
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
-                    .addComponent(txtEmail, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
-                    .addComponent(lblEmail))
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-                    .addComponent(lblSesso, javax.swing.GroupLayout.Alignment.TRAILING)
-                    .addGroup(layout.createSequentialGroup()
-                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
-                            .addComponent(txtPassword, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
-                            .addComponent(lblPassword))
-                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                        .addComponent(pnlSesso, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
-                    .addComponent(lblCittà)
-                    .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
-                    .addComponent(pnlCorsi, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
-                    .addComponent(lblCorsi))
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-                    .addComponent(lblNote)
-                    .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 121, javax.swing.GroupLayout.PREFERRED_SIZE))
-                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
-                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
-                    .addComponent(btnRegistra)
-                    .addComponent(btnCancella)
-                    .addComponent(btnChiudi))
-                .addContainerGap())
-        );
+                layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                        .addGroup(layout.createSequentialGroup()
+                                .addContainerGap()
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+                                        .addComponent(lblNome)
+                                        .addComponent(txtNome, javax.swing.GroupLayout.PREFERRED_SIZE,
+                                                javax.swing.GroupLayout.DEFAULT_SIZE,
+                                                javax.swing.GroupLayout.PREFERRED_SIZE))
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+                                        .addComponent(txtCognome, javax.swing.GroupLayout.PREFERRED_SIZE,
+                                                javax.swing.GroupLayout.DEFAULT_SIZE,
+                                                javax.swing.GroupLayout.PREFERRED_SIZE)
+                                        .addComponent(lblCognome))
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+                                        .addComponent(txtCodiceFiscale, javax.swing.GroupLayout.PREFERRED_SIZE,
+                                                javax.swing.GroupLayout.DEFAULT_SIZE,
+                                                javax.swing.GroupLayout.PREFERRED_SIZE)
+                                        .addComponent(lblCodiceFiscale))
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+                                        .addComponent(txtEmail, javax.swing.GroupLayout.PREFERRED_SIZE,
+                                                javax.swing.GroupLayout.DEFAULT_SIZE,
+                                                javax.swing.GroupLayout.PREFERRED_SIZE)
+                                        .addComponent(lblEmail))
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                                        .addComponent(lblSesso, javax.swing.GroupLayout.Alignment.TRAILING)
+                                        .addGroup(layout.createSequentialGroup()
+                                                .addGroup(layout
+                                                        .createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+                                                        .addComponent(txtPassword,
+                                                                javax.swing.GroupLayout.PREFERRED_SIZE,
+                                                                javax.swing.GroupLayout.DEFAULT_SIZE,
+                                                                javax.swing.GroupLayout.PREFERRED_SIZE)
+                                                        .addComponent(lblPassword))
+                                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                                .addComponent(pnlSesso, javax.swing.GroupLayout.PREFERRED_SIZE,
+                                                        javax.swing.GroupLayout.DEFAULT_SIZE,
+                                                        javax.swing.GroupLayout.PREFERRED_SIZE)))
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+                                        .addComponent(lblCittà)
+                                        .addComponent(cmbCitta, javax.swing.GroupLayout.PREFERRED_SIZE,
+                                                javax.swing.GroupLayout.DEFAULT_SIZE,
+                                                javax.swing.GroupLayout.PREFERRED_SIZE))
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
+                                        .addComponent(pnlCorsi, javax.swing.GroupLayout.PREFERRED_SIZE,
+                                                javax.swing.GroupLayout.DEFAULT_SIZE,
+                                                javax.swing.GroupLayout.PREFERRED_SIZE)
+                                        .addComponent(lblCorsi))
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+                                        .addComponent(lblNote)
+                                        .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 121,
+                                                javax.swing.GroupLayout.PREFERRED_SIZE))
+                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED,
+                                        javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
+                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+                                        .addComponent(btnRegistra)
+                                        .addComponent(btnCancella)
+                                        .addComponent(btnChiudi))
+                                .addContainerGap()));
 
         pack();
     }// </editor-fold>//GEN-END:initComponents
 
+    private void txtCodiceFiscaleKeyReleased(java.awt.event.KeyEvent evt) {// GEN-FIRST:event_txtCodiceFiscaleKeyReleased
+        txtCodiceFiscale.setText(txtCodiceFiscale.getText().toUpperCase());
+    }// GEN-LAST:event_txtCodiceFiscaleKeyReleased
+
     private void btnRegistraActionPerformed(java.awt.event.ActionEvent evt) {// GEN-FIRST:event_btnRegistraActionPerformed
         String nome = txtNome.getText().trim();
         String cognome = txtCognome.getText().trim();
@@ -334,16 +383,149 @@ public class RegistrazionePalestra extends javax.swing.JFrame {
                 pnlCorsi.setBorder(new LineBorder(Color.red));
             }
             JOptionPane.showMessageDialog(null, "Inserire tutti i dati richiesti.");
-            
+
             return;
         }
 
+        if (!isCodiceFiscaleValid(codiceFiscale)) {
+            JOptionPane.showMessageDialog(null, "Il codice fiscale non è valido.");
+            txtCodiceFiscale.setBorder(new LineBorder(Color.red));
+            return;
+        }
+
+        if (!isEmailValid(email)) {
+            JOptionPane.showMessageDialog(null, "L'indirizzo email non è valido.");
+            txtEmail.setBorder(new LineBorder(Color.red));
+            return;
+        }
+
+        salvaSuFile();
+        successMeassage(nome, cognome, getSelectedSesso(), getSelectedCorsi());
     }// GEN-LAST:event_btnRegistraActionPerformed
 
     private boolean isCorsiEmpty() {
         return !(chkYoga.isSelected() || chkPilates.isSelected() || chkFitness.isSelected());
     }
 
+    private boolean isCodiceFiscaleValid(String codiceFiscale) {
+        Pattern pattern = Pattern.compile("[A-Z]{6}[ABCDEHLMPRST]{3}\\d{2}[A-Z]\\d{3}[A-Z]");
+        return pattern.matcher(codiceFiscale).find();
+    }
+
+    private boolean isEmailValid(String email) {
+        Pattern pattern = Pattern.compile("[0-9a-z]([-_.]?[0-9a-z])*@[0-9a-z]([-.]?[0-9a-z])*\\.[a-z]{2,4}");
+        return pattern.matcher(email).find();
+    }
+
+    private int getSelectedSesso() {
+        int sessoSelected = -1;
+
+        if (radSessoM.isSelected()) {
+            sessoSelected = 0;
+        }
+        if (radSessoF.isSelected()) {
+            sessoSelected = 1;
+        }
+        if (radSessoNB.isSelected()) {
+            sessoSelected = 2;
+        }
+
+        return sessoSelected;
+    }
+
+    private String getSelectedCorsi() {
+        StringBuilder sb = new StringBuilder();
+
+        if (chkYoga.isSelected()) {
+            sb.append("\n");
+            sb.append(chkYoga.getText());
+        }
+        if (chkPilates.isSelected()) {
+            sb.append("\n");
+            sb.append(chkPilates.getText());
+        }
+        if (chkFitness.isSelected()) {
+            sb.append("\n");
+            sb.append(chkFitness.getText());
+        }
+
+        return sb.toString();
+    }
+
+    private void salvaSuFile() {
+        String nome = txtNome.getText().trim();
+        String cognome = txtCognome.getText().trim();
+        String codiceFiscale = txtCodiceFiscale.getText().trim().toUpperCase();
+        String email = txtEmail.getText().trim();
+        String password = new String(txtPassword.getPassword());
+        String sesso;
+        String note = txtaNote.getText();
+        StringBuilder sb = new StringBuilder();
+
+        switch (getSelectedSesso()) {
+            case 0:
+                sesso = "M";
+                break;
+            case 1:
+                sesso = "F";
+                break;
+            case 2:
+                sesso = "NB";
+                break;
+            default:
+                sesso = "";
+                break;
+        }
+
+        sb.append("Nome: ");
+        sb.append(nome);
+        sb.append("\nCognome: ");
+        sb.append(cognome);
+        sb.append("\nCodice fiscale: ");
+        sb.append(codiceFiscale);
+        sb.append("\nEmail: ");
+        sb.append(email);
+        sb.append("\nPassword: ");
+        sb.append(password);
+        sb.append("\nSesso: ");
+        sb.append(sesso);
+        sb.append("\nCittà: ");
+        sb.append(cmbCitta.getSelectedItem());
+        sb.append("\nCorsi: ");
+        sb.append(getSelectedCorsi().replace("\n", ", ").replaceFirst(", ", ""));
+        sb.append("\nNote: ");
+        sb.append(note);
+        sb.append("\n--FINE REGISTRAZIONE SOPRA--");
+
+        try (BufferedWriter bw = new BufferedWriter(new FileWriter("./src/registrazionepalestra/registrazioni.txt", true))) {
+            bw.write(sb.toString());
+        } catch (IOException _) {
+            JOptionPane.showMessageDialog(null, "Errore nel salvataggio della registrazione.");
+        }
+    }
+
+    private void successMeassage(String nome, String cognome, int sesso, String corsi) {
+        String letteraSignor;
+
+        switch (sesso) {
+            case 0:
+                letteraSignor = "e";
+                break;
+            case 1:
+                letteraSignor = "a";
+                break;
+            case 2:
+                letteraSignor = "ə";
+                break;
+            default:
+                letteraSignor = "";
+                break;
+        }
+
+        JOptionPane.showMessageDialog(null, "Complimenti signor" + letteraSignor + " " + nome + " " + cognome
+                + ", la registrazione ai seguenti corsi è avvenuta con successo:" + corsi);
+    }
+
     private void txtNomeFocusGained(java.awt.event.FocusEvent evt) {// GEN-FIRST:event_txtNomeFocusGained
         txtNome.setBorder(null);
     }// GEN-LAST:event_txtNomeFocusGained
@@ -425,7 +607,7 @@ public class RegistrazionePalestra extends javax.swing.JFrame {
     private javax.swing.JCheckBox chkFitness;
     private javax.swing.JCheckBox chkPilates;
     private javax.swing.JCheckBox chkYoga;
-    private javax.swing.JComboBox<String> jComboBox1;
+    private javax.swing.JComboBox<String> cmbCitta;
     private javax.swing.JScrollPane jScrollPane1;
     private javax.swing.JLabel lblCittà;
     private javax.swing.JLabel lblCodiceFiscale;