diff --git a/src/main/java/de/hs_mannheim/domain/System.java b/src/main/java/de/hs_mannheim/domain/System.java
index 8249626..128203d 100644
--- a/src/main/java/de/hs_mannheim/domain/System.java
+++ b/src/main/java/de/hs_mannheim/domain/System.java
@@ -1,15 +1,23 @@
 package de.hs_mannheim.domain;
 
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
 import java.net.URI;
 import java.net.http.HttpClient;
 import java.net.http.HttpRequest;
 import java.net.http.HttpResponse;
 import java.net.http.HttpResponse.BodyHandlers;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.TreeSet;
 
 import org.json.JSONObject;
 
+import de.hs_mannheim.ui.Main;
+
 public class System {
     
     private User current_user = new User();
@@ -43,12 +51,31 @@ public class System {
         return true;
     }
 
-    public TreeSet<String> search(String hometown_or_zip){
-        return new TreeSet<String>();
+    public ArrayList<String> search(String hometown_or_zip){
+        
+        TreeSet<String> zip_set = new TreeSet<>();
+
+        InputStream inputStream = Main.class.getResourceAsStream("/zip.csv");
+
+        try (BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) {
+            String line;
+            while ((line = reader.readLine()) != null) {
+                if(line.contains(hometown_or_zip)&&zip_set.size()<200){
+                    line = line.replace("\"", "");
+                    zip_set.add(line);
+                }
+            }
+        } catch (IOException e) {}
+        
+        return new ArrayList<>(zip_set);
     }
 
-    public TreeSet<String> random_destinations(){
-        return new TreeSet<String>();
+    public ArrayList<String> random_destinations_car(){
+        return new ArrayList<String>();
+    }
+
+    public ArrayList<String> random_destinations_bike(){
+        return new ArrayList<String>();
     }
 
     public String[] destination_details(String destination_zip){
diff --git a/src/main/java/de/hs_mannheim/facade/Application.java b/src/main/java/de/hs_mannheim/facade/Application.java
index 14d3c20..8a87955 100644
--- a/src/main/java/de/hs_mannheim/facade/Application.java
+++ b/src/main/java/de/hs_mannheim/facade/Application.java
@@ -1,5 +1,6 @@
 package de.hs_mannheim.facade;
 
+import java.util.ArrayList;
 import java.util.TreeSet;
 
 import de.hs_mannheim.domain.System;
@@ -28,12 +29,16 @@ public class Application {
         return true;
     }
 
-    public TreeSet<String> search(String hometown_or_zip){
-        return new TreeSet<String>();
+    public ArrayList<String> search(String hometown_or_zip){
+        return new ArrayList<String>();
     }
 
-    public TreeSet<String> random_destinations(){
-        return new TreeSet<String>();
+    public ArrayList<String> random_destinations_car(){
+        return new ArrayList<String>();
+    }
+
+    public ArrayList<String> random_destinations_bike(){
+        return new ArrayList<String>();
     }
 
     public String[] destination_details(String destination_zip){
diff --git a/src/test/java/de/hs_mannheim/domain/SystemTest.java b/src/test/java/de/hs_mannheim/domain/SystemTest.java
index 07714b8..bc8acac 100644
--- a/src/test/java/de/hs_mannheim/domain/SystemTest.java
+++ b/src/test/java/de/hs_mannheim/domain/SystemTest.java
@@ -3,6 +3,8 @@ package de.hs_mannheim.domain;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotEquals;
 
+import java.util.ArrayList;
+
 import org.junit.jupiter.api.Test;
 
 public class SystemTest {
@@ -25,4 +27,16 @@ public class SystemTest {
         assertNotEquals("Es ist ein Fehler aufgetreten!",current_system.current_weather());
     }
 
+    @Test
+    public void search(){
+
+        System current_system = new System("35a75437476f12302f72e55d368485db");
+
+        ArrayList<String> list = current_system.search("Mannheim");
+        
+        assertEquals("68159", list.get(0).split(";")[0]);
+        assertEquals("68167", list.get(4).split(";")[0]);
+
+    }
+
 }