Added first datatypes

app/src/main/AndroidManifest.xml

@@ -12,7 +12,7 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.ShapPlanner">
         <activity
-            android:name=".MainActivity"
+            android:name=".activities.MainActivity"
             android:exported="true"
             android:label="@string/app_name"
             android:theme="@style/Theme.ShapPlanner">

app/src/main/java/de/miaurizius/shap_planner/activities/MainActivity.kt

@@ -1,4 +1,4 @@
-package de.miaurizius.shap_planner
+package de.miaurizius.shap_planner.activities
 
 import android.os.Bundle
 import androidx.activity.ComponentActivity

app/src/main/java/de/miaurizius/shap_planner/entities/Expense.kt

@@ -0,0 +1,12 @@
+package de.miaurizius.shap_planner.entities
+
+import java.util.UUID
+
+data class Expense (
+    val id: UUID,
+    val amt: Double,
+    val desc: String,
+
+    val payerId: UUID,
+    val debtors: List<User>
+)

app/src/main/java/de/miaurizius/shap_planner/entities/User.kt

@@ -0,0 +1,8 @@
+package de.miaurizius.shap_planner.entities
+
+import java.util.UUID
+
+data class User (
+    val id: UUID,
+    val name: String,
+)