diff --git a/.idea/misc.xml b/.idea/misc.xml
index 406ac20..738edfe 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -56,7 +56,7 @@
     <ConfirmationsSetting value="0" id="Add" />
     <ConfirmationsSetting value="0" id="Remove" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/build.gradle b/app/build.gradle
index 4f16298..5349f75 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,8 +7,8 @@ android {
         applicationId "com.de.aldo_apps.aldo.mariokartcircuitselector"
         minSdkVersion 16
         targetSdkVersion 25
-        versionCode 1
-        versionName "1.0"
+        versionCode 2
+        versionName "0.2"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
diff --git a/app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/Constants.java b/app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/Constants.java
new file mode 100644
index 0000000..438dba4
--- /dev/null
+++ b/app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/Constants.java
@@ -0,0 +1,155 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector;
+
+/**
+ * Created by aldo7224 on 07.08.17.
+ */
+
+public class Constants {
+
+    /**
+     * As SQLite does not have a native boolean value, we use integers to represent true and false.
+     * This is the value for a true statement.
+     */
+    public final static Integer TRUE = 1;
+
+    /**
+     * As SQLite does not have a native boolean value, we use integers to represent true and false.
+     * This is the value for a false statement.
+     */
+    public final static Integer FALSE = 0;
+
+    /**
+     * The Name of the complete database.
+     */
+    public static final String DATABASE_NAME = "MarioKart.db";
+
+    /**
+     * The name of the table containing all information according accessories.
+     */
+    public static final String TABLE_ACCESSORY = "accessory";
+
+    /**
+     * The name of the table containing all information according characters.
+     */
+    public static final String TABLE_CHARACTER = "character";
+
+    /**
+     * The name of the table containing all information according games.
+     */
+    public static final String TABLE_GAME = "game";
+
+    /**
+     * The name of the table containing all information according karts.
+     */
+    public static final String TABLE_KART = "kart";
+
+    /**
+     * The name of the table containing all information according rulesets.
+     */
+    public static final String TABLE_RULESET = "ruleset";
+
+    /**
+     * The name of the table containing all information according tracks.
+     */
+    public static final String TABLE_TRACK = "track";
+
+    /**
+     * The name of the table containing all information according wheels.
+     */
+    public static final String TABLE_WHEELS = "wheels";
+
+    /**
+     * The global KEY for the _id field in the database.
+     */
+    public static final String KEY_ID = "_id";
+
+    /**
+     * The global KEY for the name field in the database.
+     */
+    public static final String KEY_NAME = "name";
+
+    /**
+     * The global KEY for the game field in the database.
+     */
+    public static final String KEY_GAME = "game";
+
+    /**
+     * The global KEY for the available field in the database.
+     */
+    public static final String KEY_AVAILABLE = "available";
+
+    /**
+     * The global KEY for the weight field in the database.
+     */
+    public static final String KEY_WEIGHT = "weight";
+
+    /**
+     * The global KEY for the cover uri field in the database.
+     */
+    public static final String KEY_COVER_URI = "cover_uri";
+
+    /**
+     * The global KEY for the wheels field in the database.
+     */
+    public static final String KEY_WHEELS = "wheels";
+
+    /**
+     * The global KEY for the accessory field in the database.
+     */
+    public static final String KEY_ACCESSORY = "accessory";
+
+    /**
+     * The global KEY for the dedicated driver field in the database.
+     */
+    public static final String KEY_DEDICATED_DRIVER = "dedicated_driver";
+
+    /**
+     * The global KEY for the free for all field in the database.
+     */
+    public static final String KEY_FREE_FOR_ALL = "free_for_all";
+
+    /**
+     * The global KEY for the mirror class field in the database.
+     */
+    public static final String KEY_MIRROR_CLASS = "mirror_class";
+
+    /**
+     * The global KEY for the 50 ccm field in the database.
+     */
+    public static final String KEY_50_CCM = "50_ccm";
+
+    /**
+     * The global KEY for the 100 ccm field in the database.
+     */
+    public static final String KEY_100_CCM = "100_ccm";
+
+    /**
+     * The global KEY for the 150 ccm field in the database.
+     */
+    public static final String KEY_150_CCM = "150_ccm";
+
+    /**
+     * The global KEY for the 200 ccm field in the database.
+     */
+    public static final String KEY_200_CCM = "200_ccm";
+
+    /**
+     * The global KEY for the kart free for all field in the database.
+     */
+    public static final String KEY_KART_FREE_FOR_ALL = "kart_free_for_all";
+
+    /**
+     * The global KEY for the bikes field in the database.
+     */
+    public static final String KEY_BIKES = "bikes";
+
+    /**
+     * The global KEY for the package field in the database.
+     */
+    public static final String KEY_PACKAGE = "package";
+
+    /**
+     * The global KEY for the number field in the database.
+     */
+    public static final String KEY_NUMBER = "number";
+}