diff --git a/Localization/Defaults/City.php b/Localization/Defaults/City.php
index 698f54c60..0c3a2edd9 100644
--- a/Localization/Defaults/City.php
+++ b/Localization/Defaults/City.php
@@ -30,7 +30,7 @@ final class City
      * @var   int
      * @since 1.0.0
      */
-    private $id = 0;
+    private int $id = 0;
 
     /**
      * Country code.
@@ -38,7 +38,7 @@ final class City
      * @var   string
      * @since 1.0.0
      */
-    private $countryCode = '';
+    private string $countryCode = '';
 
     /**
      * State code.
@@ -46,7 +46,7 @@ final class City
      * @var   string
      * @since 1.0.0
      */
-    private $state = '';
+    private string $state = '';
 
     /**
      * City name.
@@ -54,7 +54,7 @@ final class City
      * @var   string
      * @since 1.0.0
      */
-    private $name = '';
+    private string $name = '';
 
     /**
      * Postal code.
@@ -62,7 +62,7 @@ final class City
      * @var   int
      * @since 1.0.0
      */
-    private $postal = 0;
+    private int $postal = 0;
 
     /**
      * Latitude.
@@ -70,7 +70,7 @@ final class City
      * @var   float
      * @since 1.0.0
      */
-    private $lat = 0.0;
+    private float $lat = 0.0;
 
     /**
      * Longitude.
@@ -78,7 +78,7 @@ final class City
      * @var   float
      * @since 1.0.0
      */
-    private $long = 0.0;
+    private float $long = 0.0;
 
     /**
      * Get city name
diff --git a/Localization/Defaults/Currency.php b/Localization/Defaults/Currency.php
index 19e82821d..9389634c0 100644
--- a/Localization/Defaults/Currency.php
+++ b/Localization/Defaults/Currency.php
@@ -30,7 +30,7 @@ final class Currency
      * @var   int
      * @since 1.0.0
      */
-    private $id = 0;
+    private int $id = 0;
 
     /**
      * Currency name.
@@ -38,7 +38,7 @@ final class Currency
      * @var   string
      * @since 1.0.0
      */
-    private $name = '';
+    private string $name = '';
 
     /**
      * Currency code.
@@ -46,7 +46,7 @@ final class Currency
      * @var   string
      * @since 1.0.0
      */
-    private $code = '';
+    private string $code = '';
 
     /**
      * Currency code.
@@ -54,7 +54,7 @@ final class Currency
      * @var   int
      * @since 1.0.0
      */
-    private $number = 0;
+    private int $number = 0;
 
     /**
      * Currency decimals.
@@ -62,7 +62,7 @@ final class Currency
      * @var   int
      * @since 1.0.0
      */
-    private $decimals = 0;
+    private int $decimals = 0;
 
     /**
      * Currency countries.
@@ -70,7 +70,7 @@ final class Currency
      * @var   string
      * @since 1.0.0
      */
-    private $countries = '';
+    private string $countries = '';
 
     /**
      * Get currency name
diff --git a/Localization/Defaults/Language.php b/Localization/Defaults/Language.php
index 0e446d8e6..f8fd98b12 100644
--- a/Localization/Defaults/Language.php
+++ b/Localization/Defaults/Language.php
@@ -30,7 +30,7 @@ final class Language
      * @var   int
      * @since 1.0.0
      */
-    private $id = 0;
+    private int $id = 0;
 
     /**
      * Language name.
@@ -38,7 +38,7 @@ final class Language
      * @var   string
      * @since 1.0.0
      */
-    private $name = '';
+    private string $name = '';
 
     /**
      * Language native.
@@ -46,7 +46,7 @@ final class Language
      * @var   string
      * @since 1.0.0
      */
-    private $native = '';
+    private string $native = '';
 
     /**
      * Language code.
@@ -54,7 +54,7 @@ final class Language
      * @var   string
      * @since 1.0.0
      */
-    private $code2 = '';
+    private string $code2 = '';
 
     /**
      * Language code.
@@ -62,7 +62,7 @@ final class Language
      * @var   string
      * @since 1.0.0
      */
-    private $code3 = '';
+    private string $code3 = '';
 
     /**
      * Language code.
@@ -70,7 +70,7 @@ final class Language
      * @var   string
      * @since 1.0.0
      */
-    private $code3Native = '';
+    private string $code3Native = '';
 
     /**
      * Get id
diff --git a/Math/Number/Complex.php b/Math/Number/Complex.php
index 0f8eae1d7..8965d90bc 100644
--- a/Math/Number/Complex.php
+++ b/Math/Number/Complex.php
@@ -27,24 +27,24 @@ final class Complex
     /**
      * Real part.
      *
-     * @var   mixed
+     * @var   int|float
      * @since 1.0.0
      */
-    private $re = null;
+    private $re;
 
     /**
      * Imaginary part.
      *
-     * @var   mixed
+     * @var   int|float
      * @since 1.0.0
      */
-    private $im = null;
+    private $im;
 
     /**
      * Constructor.
      *
-     * @param mixed $re Real part
-     * @param mixed $im Imaginary part
+     * @param int|float $re Real part
+     * @param int|float $im Imaginary part
      *
      * @since 1.0.0
      */
@@ -57,7 +57,7 @@ final class Complex
     /**
      * Get real part
      *
-     * @return mixed
+     * @return int|float
      *
      * @since 1.0.0
      */
@@ -69,7 +69,7 @@ final class Complex
     /**
      * Get imaginary part
      *
-     * @return mixed
+     * @return int|float
      *
      * @since 1.0.0
      */
@@ -125,7 +125,7 @@ final class Complex
     /**
      * Absolute
      *
-     * @return mixed
+     * @return int|float
      *
      * @since 1.0.0
      */
diff --git a/System/File/Ftp/File.php b/System/File/Ftp/File.php
index f356e7428..965973078 100644
--- a/System/File/Ftp/File.php
+++ b/System/File/Ftp/File.php
@@ -42,15 +42,15 @@ class File extends FileAbstract implements FileInterface
      * @var   resource
      * @since 1.0.0
      */
-    private $con = null;
+    private $con;
 
     /**
      * Ftp connection uri.
      *
-     * @var   null|Http
+     * @var   Http
      * @since 1.0.0
      */
-    private ?Http $uri = null;
+    private Http $uri;
 
     /**
      * Create ftp connection
diff --git a/Uri/Http.php b/Uri/Http.php
index a53d100ab..76e0e26dd 100644
--- a/Uri/Http.php
+++ b/Uri/Http.php
@@ -52,7 +52,7 @@ final class Http implements UriInterface
      * @var   array
      * @since 1.0.0
      */
-    private array $pathElements = [];
+    private array $pathElements;
 
     /**
      * Uri.
@@ -60,7 +60,7 @@ final class Http implements UriInterface
      * @var   string
      * @since 1.0.0
      */
-    private string $uri = '';
+    private string $uri;
 
     /**
      * Uri scheme.
@@ -68,7 +68,7 @@ final class Http implements UriInterface
      * @var   string
      * @since 1.0.0
      */
-    private string $scheme = '';
+    private string $scheme;
 
     /**
      * Uri host.
@@ -76,7 +76,7 @@ final class Http implements UriInterface
      * @var   string
      * @since 1.0.0
      */
-    private string $host = '';
+    private string $host;
 
     /**
      * Uri port.
@@ -84,7 +84,7 @@ final class Http implements UriInterface
      * @var   int
      * @since 1.0.0
      */
-    private int $port = 80;
+    private int $port;
 
     /**
      * Uri user.
@@ -92,7 +92,7 @@ final class Http implements UriInterface
      * @var   string
      * @since 1.0.0
      */
-    private string $user = '';
+    private string $user;
 
     /**
      * Uri password.
@@ -100,7 +100,7 @@ final class Http implements UriInterface
      * @var   string
      * @since 1.0.0
      */
-    private string $pass = '';
+    private string $pass;
 
     /**
      * Uri path.
@@ -108,7 +108,7 @@ final class Http implements UriInterface
      * @var   string
      * @since 1.0.0
      */
-    private string $path = '';
+    private string $path;
 
     /**
      * Uri query.
@@ -124,7 +124,7 @@ final class Http implements UriInterface
      * @var   string
      * @since 1.0.0
      */
-    private string $queryString = '';
+    private string $queryString;
 
     /**
      * Uri fragment.
@@ -132,7 +132,7 @@ final class Http implements UriInterface
      * @var   string
      * @since 1.0.0
      */
-    private string $fragment = '';
+    private string $fragment;
 
     /**
      * Uri base.
@@ -140,7 +140,7 @@ final class Http implements UriInterface
      * @var   string
      * @since 1.0.0
      */
-    private string $base = '';
+    private string $base;
 
     /**
      * Constructor.
@@ -163,6 +163,18 @@ final class Http implements UriInterface
         $url       = \parse_url($this->uri);
 
         if ($url === false) {
+            $this->scheme       = '';
+            $this->host         = '';
+            $this->port         = 80;
+            $this->user         = '';
+            $this->pass         = '';
+            $this->path         = '';
+            $this->queryString  = '';
+            $this->query        = [];
+            $this->pathElements = [];
+            $this->fragment     = '';
+            $this->base         = '';
+
             return;
         }
 
diff --git a/Utils/Barcode/HIBCC.php b/Utils/Barcode/HIBCC.php
index de7a9139a..f5cb7d000 100644
--- a/Utils/Barcode/HIBCC.php
+++ b/Utils/Barcode/HIBCC.php
@@ -54,7 +54,7 @@ class HIBCC
      * @var   string
      * @since 1.0.0
      */
-    private $dateFormat = 'Y-m-d';
+    private string $dateFormat = 'Y-m-d';
 
     /**
      * Date of the expiration.
diff --git a/Views/View.php b/Views/View.php
index c1e9ec58f..3dcf2aa35 100644
--- a/Views/View.php
+++ b/Views/View.php
@@ -53,7 +53,7 @@ class View extends ViewAbstract
      * @var   null|ApplicationAbstract
      * @since 1.0.0
      */
-    protected ?ApplicationAbstract $app = null;
+    protected ?ApplicationAbstract $app;
 
     /**
      * Request.
@@ -61,7 +61,7 @@ class View extends ViewAbstract
      * @var   null|RequestAbstract
      * @since 1.0.0
      */
-    protected ?RequestAbstract $request = null;
+    protected ?RequestAbstract $request;
 
     /**
      * Request.
@@ -69,7 +69,7 @@ class View extends ViewAbstract
      * @var   null|ResponseAbstract
      * @since 1.0.0
      */
-    protected ?ResponseAbstract $response = null;
+    protected ?ResponseAbstract $response;
 
     /**
      * Theme name.