diff --git a/Auto.cs b/Auto.cs
index 7ff6897..fbd2e66 100644
--- a/Auto.cs
+++ b/Auto.cs
@@ -2,10 +2,10 @@ namespace concessionaria;
 
 class Auto {
 
-    readonly string targa, marca, modello;
-    private readonly int cavalli;
-    private int prezzo;
-    private int bollo;
+    string targa, marca, modello;
+    int cavalli;
+    int prezzo;
+    int bollo;
 
     public Auto(string targa, string marca, string modello, int cavalli, int prezzo) {
         this.targa = targa;
@@ -19,7 +19,7 @@ class Auto {
         this.prezzo = p_prezzo;
     }
     public void SetBollo() {
-        const CAVALLI_MAX = 250;
+        const int CAVALLI_MAX = 250;
         if (cavalli > CAVALLI_MAX) {
             this.bollo = (this.cavalli * 100) + ((this.cavalli - CAVALLI_MAX) * 20);
         }
@@ -51,7 +51,7 @@ class Auto {
         Console.WriteLine($"Targa: {this.targa}");
         Console.WriteLine($"Marca: {this.marca}");
         Console.WriteLine($"Modello: {this.modello}");
-        Console.WriteLine($"Cavalli: {this.Cavalli}");
+        Console.WriteLine($"Cavalli: {this.cavalli}");
         Console.WriteLine($"Prezzo: {this.prezzo}");
         Console.WriteLine($"Bollo: {this.bollo}");
     }
diff --git a/Program.cs b/Program.cs
index 26128fe..6e0a94f 100644
--- a/Program.cs
+++ b/Program.cs
@@ -11,7 +11,7 @@ class Program {
             Console.WriteLine("2. Stampa dati auto");
             Console.WriteLine("3. Promozione primavera");
             Console.WriteLine("0. Esci");
-            Console.Write("Scelta: "):
+            Console.Write("Scelta: ");
             scelta = Convert.ToInt32(Console.ReadLine());
 
             switch (scelta) {
@@ -51,6 +51,7 @@ class Program {
                     break;
             }
         }
+        while(scelta != 0);
     }
 
     static void Pausa() {
@@ -60,15 +61,14 @@ class Program {
     }
     static Auto CreaAuto() {
         string targa, marca, modello;
-        int cavalli, bollo;
-        double prezzo;
+        int cavalli, bollo, prezzo;
         bool controlloTarga;
         Auto auto;
 
         do {
             Console.Write("Inserire la targa: ");
             targa = Console.ReadLine();
-            controlloTarga = ControlloTarga(targa)
+            controlloTarga = ControlloTarga(targa);
             if (!controlloTarga) {
                 Console.WriteLine("Targa non valida.");
                 Pausa();
@@ -94,7 +94,7 @@ class Program {
 
         do {
             Console.Write("Inserire il prezzo: ");
-            prezzo = Convert.ToDouble(Console.ReadLine());
+            prezzo = Convert.ToInt32(Console.ReadLine());
             if (prezzo <= 0) {
                 Console.WriteLine("Prezzo non valido.");
                 Pausa();
@@ -114,25 +114,25 @@ class Program {
         bool ritorno = true;
         const int LUNGHEZZA = 7;
 
-        if (targa.length != LUNGHEZZA) {
+        if (targa.Length != LUNGHEZZA) {
             ritorno = false; //la targa non è della lunghezza corretta
         }
         if (ritorno) {
             for (int i = 0; i < 2 && ritorno; i++) {
                 if (!(char.IsLetter(targa[i]))) {
-                    ritorno = false
+                    ritorno = false;
                 }
             }
             if (ritorno) {
                 for (int i = 2; i < 5 && ritorno; i++) {
                     if (!(char.IsNumber(targa[i]))) {
-                        ritorno = false
+                        ritorno = false;
                     }
                 }
                 if (ritorno) {
                     for (int i = 5; i < 7 && ritorno; i++) {
                         if (!(char.IsLetter(targa[i]))) {
-                            ritorno = false
+                            ritorno = false;
                         }
                     }
                 }
diff --git a/bin/Debug/net9.0/concessionaria b/bin/Debug/net9.0/concessionaria
new file mode 100755
index 0000000..652e861
Binary files /dev/null and b/bin/Debug/net9.0/concessionaria differ
diff --git a/bin/Debug/net9.0/concessionaria.deps.json b/bin/Debug/net9.0/concessionaria.deps.json
new file mode 100644
index 0000000..362b889
--- /dev/null
+++ b/bin/Debug/net9.0/concessionaria.deps.json
@@ -0,0 +1,23 @@
+{
+  "runtimeTarget": {
+    "name": ".NETCoreApp,Version=v9.0",
+    "signature": ""
+  },
+  "compilationOptions": {},
+  "targets": {
+    ".NETCoreApp,Version=v9.0": {
+      "concessionaria/1.0.0": {
+        "runtime": {
+          "concessionaria.dll": {}
+        }
+      }
+    }
+  },
+  "libraries": {
+    "concessionaria/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    }
+  }
+}
\ No newline at end of file
diff --git a/bin/Debug/net9.0/concessionaria.dll b/bin/Debug/net9.0/concessionaria.dll
new file mode 100644
index 0000000..5380d60
Binary files /dev/null and b/bin/Debug/net9.0/concessionaria.dll differ
diff --git a/bin/Debug/net9.0/concessionaria.pdb b/bin/Debug/net9.0/concessionaria.pdb
new file mode 100644
index 0000000..67c3e52
Binary files /dev/null and b/bin/Debug/net9.0/concessionaria.pdb differ
diff --git a/bin/Debug/net9.0/concessionaria.runtimeconfig.json b/bin/Debug/net9.0/concessionaria.runtimeconfig.json
new file mode 100644
index 0000000..b19c3c8
--- /dev/null
+++ b/bin/Debug/net9.0/concessionaria.runtimeconfig.json
@@ -0,0 +1,12 @@
+{
+  "runtimeOptions": {
+    "tfm": "net9.0",
+    "framework": {
+      "name": "Microsoft.NETCore.App",
+      "version": "9.0.0"
+    },
+    "configProperties": {
+      "System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization": false
+    }
+  }
+}
\ No newline at end of file
diff --git a/obj/Debug/net9.0/apphost b/obj/Debug/net9.0/apphost
new file mode 100755
index 0000000..652e861
Binary files /dev/null and b/obj/Debug/net9.0/apphost differ
diff --git a/obj/Debug/net9.0/concessionaria.AssemblyInfo.cs b/obj/Debug/net9.0/concessionaria.AssemblyInfo.cs
index 08a7d1e..1f5951e 100644
--- a/obj/Debug/net9.0/concessionaria.AssemblyInfo.cs
+++ b/obj/Debug/net9.0/concessionaria.AssemblyInfo.cs
@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("concessionaria")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+ca4b362789dad1cbc5d9a0db3e554b0bda371265")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+afb1ffd370160dd87709842d36466c47054b3885")]
 [assembly: System.Reflection.AssemblyProductAttribute("concessionaria")]
 [assembly: System.Reflection.AssemblyTitleAttribute("concessionaria")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
diff --git a/obj/Debug/net9.0/concessionaria.AssemblyInfoInputs.cache b/obj/Debug/net9.0/concessionaria.AssemblyInfoInputs.cache
index 2840944..c769efc 100644
--- a/obj/Debug/net9.0/concessionaria.AssemblyInfoInputs.cache
+++ b/obj/Debug/net9.0/concessionaria.AssemblyInfoInputs.cache
@@ -1 +1 @@
-fecafa3580f7139cbcf70eca70c2db5701c55070a48f9eac1ef173aaa4e989a8
+e7de93828de4db8f2a804edaf0eded720216c3ec36e0b2cbca6e0a1b12f09613
diff --git a/obj/Debug/net9.0/concessionaria.csproj.CoreCompileInputs.cache b/obj/Debug/net9.0/concessionaria.csproj.CoreCompileInputs.cache
new file mode 100644
index 0000000..8fe1de4
--- /dev/null
+++ b/obj/Debug/net9.0/concessionaria.csproj.CoreCompileInputs.cache
@@ -0,0 +1 @@
+5b05b952494d25cb6d96548646838b72ff7c29e979baa40b6e80c699c34ec21e
diff --git a/obj/Debug/net9.0/concessionaria.csproj.FileListAbsolute.txt b/obj/Debug/net9.0/concessionaria.csproj.FileListAbsolute.txt
new file mode 100644
index 0000000..f1cffdb
--- /dev/null
+++ b/obj/Debug/net9.0/concessionaria.csproj.FileListAbsolute.txt
@@ -0,0 +1,14 @@
+/home/Verde/git/concessionaria/obj/Debug/net9.0/concessionaria.GeneratedMSBuildEditorConfig.editorconfig
+/home/Verde/git/concessionaria/obj/Debug/net9.0/concessionaria.AssemblyInfoInputs.cache
+/home/Verde/git/concessionaria/obj/Debug/net9.0/concessionaria.AssemblyInfo.cs
+/home/Verde/git/concessionaria/obj/Debug/net9.0/concessionaria.csproj.CoreCompileInputs.cache
+/home/Verde/git/concessionaria/bin/Debug/net9.0/concessionaria
+/home/Verde/git/concessionaria/bin/Debug/net9.0/concessionaria.deps.json
+/home/Verde/git/concessionaria/bin/Debug/net9.0/concessionaria.runtimeconfig.json
+/home/Verde/git/concessionaria/bin/Debug/net9.0/concessionaria.dll
+/home/Verde/git/concessionaria/bin/Debug/net9.0/concessionaria.pdb
+/home/Verde/git/concessionaria/obj/Debug/net9.0/concessionaria.dll
+/home/Verde/git/concessionaria/obj/Debug/net9.0/refint/concessionaria.dll
+/home/Verde/git/concessionaria/obj/Debug/net9.0/concessionaria.pdb
+/home/Verde/git/concessionaria/obj/Debug/net9.0/concessionaria.genruntimeconfig.cache
+/home/Verde/git/concessionaria/obj/Debug/net9.0/ref/concessionaria.dll
diff --git a/obj/Debug/net9.0/concessionaria.dll b/obj/Debug/net9.0/concessionaria.dll
new file mode 100644
index 0000000..5380d60
Binary files /dev/null and b/obj/Debug/net9.0/concessionaria.dll differ
diff --git a/obj/Debug/net9.0/concessionaria.genruntimeconfig.cache b/obj/Debug/net9.0/concessionaria.genruntimeconfig.cache
new file mode 100644
index 0000000..79d7e5d
--- /dev/null
+++ b/obj/Debug/net9.0/concessionaria.genruntimeconfig.cache
@@ -0,0 +1 @@
+a1474bd7683c8cec59a4c9d11aaca2ac3913d4416bff9878f8c64185bef5fc2b
diff --git a/obj/Debug/net9.0/concessionaria.pdb b/obj/Debug/net9.0/concessionaria.pdb
new file mode 100644
index 0000000..67c3e52
Binary files /dev/null and b/obj/Debug/net9.0/concessionaria.pdb differ
diff --git a/obj/Debug/net9.0/ref/concessionaria.dll b/obj/Debug/net9.0/ref/concessionaria.dll
new file mode 100644
index 0000000..7e4847e
Binary files /dev/null and b/obj/Debug/net9.0/ref/concessionaria.dll differ
diff --git a/obj/Debug/net9.0/refint/concessionaria.dll b/obj/Debug/net9.0/refint/concessionaria.dll
new file mode 100644
index 0000000..7e4847e
Binary files /dev/null and b/obj/Debug/net9.0/refint/concessionaria.dll differ