Merge branch 'bugfix_branch'

README.txt

@@ -0,0 +1,3 @@
+Selim Eser 2211482: Selim Eser, Selim
+David Groys 3012642: David Groys
+Daniel Zdravkovic 3012893: Daniel Zdravkovic

src/main/java/de/hs_mannheim/domain/System.java

@@ -43,8 +43,8 @@ public class System {
 
     public static String decoding(String string) {
         byte[] binary_data = new byte[string.length()];
-        for(int i = 0; i < string.length(); i++) {
-            binary_data[i] = (byte)string.charAt(i);
+        for (int i = 0; i < string.length(); i++) {
+            binary_data[i] = (byte) string.charAt(i);
         }
         return new String(Base64.decodeBase64(binary_data));
     }
@@ -58,7 +58,7 @@ public class System {
     }
 
     public static double parseDouble(String s) throws NumberFormatException {
-        if(s.equals(""))
+        if (s.equals(""))
             return 0;
         else
             return Double.parseDouble(s);
@@ -81,15 +81,15 @@ public class System {
                         Double.parseDouble(fileString[7])));
             }
         } catch (Exception e) {
-        //
+            //
         }
     }
 
-    public ArrayList<String> all_user_toString(){
+    public ArrayList<String> all_user_toString() {
 
         ArrayList<String> result = new ArrayList<>();
 
-        for(User user : this.all_user){
+        for (User user : this.all_user) {
             result.add(user.toString());
         }
 
@@ -111,41 +111,42 @@ public class System {
         return false;
     }
 
-    public boolean sign_up_user(String username, String password, String password_authentication, String hometown, String zip,
-                                String car_name, String car_l_100kmS, String car_avg_kmhS, String bike_avg_kmhS){
+    public boolean sign_up_user(String username, String password, String password_authentication, String hometown,
+            String zip,
+            String car_name, String car_l_100kmS, String car_avg_kmhS, String bike_avg_kmhS) {
 
         double car_l_100km;
         double car_avg_kmh;
         double bike_avg_kmh;
 
-        try{
+        try {
             car_l_100km = parseDouble(car_l_100kmS);
             car_avg_kmh = parseDouble(car_avg_kmhS);
             bike_avg_kmh = parseDouble(bike_avg_kmhS);
-        } catch (NumberFormatException n){
+        } catch (NumberFormatException n) {
             return false;
         }
 
-        if(username.equals("")||password.equals("")||hometown.equals("")||zip.equals(""))
+        if (username.equals("") || password.equals("") || hometown.equals("") || zip.equals(""))
             return false;
 
-        if(!password.equals(password_authentication))
+        if (!password.equals(password_authentication))
             return false;
 
-        for(User user: this.all_user)
-            if(user.getUsername().equals(username))
+        for (User user : this.all_user)
+            if (user.getUsername().equals(username))
                 return false;
 
         ArrayList<String> mem = search(zip);
         boolean bool = false;
 
-        for (String line: mem)
-            if(line.split(";")[1].equals(hometown)) {
+        for (String line : mem)
+            if (line.split(";")[1].equals(hometown)) {
                 bool = true;
                 break;
             }
 
-        if(!bool)
+        if (!bool)
             return false;
 
         current_user = new User(username, password, hometown, zip, car_name, car_l_100km, car_avg_kmh, bike_avg_kmh);
@@ -160,51 +161,53 @@ public class System {
     }
 
     public boolean change_user_details(String username, String password, String hometown, String zip,
-                                    String car_name, String car_l_100kmS, String car_avg_kmhS, String bike_avg_kmhS){
+            String car_name, String car_l_100kmS, String car_avg_kmhS, String bike_avg_kmhS) {
 
         double car_l_100km;
         double car_avg_kmh;
         double bike_avg_kmh;
 
-        try{
+        try {
             car_l_100km = parseDouble(car_l_100kmS);
             car_avg_kmh = parseDouble(car_avg_kmhS);
             bike_avg_kmh = parseDouble(bike_avg_kmhS);
-        } catch (NumberFormatException n){
+        } catch (NumberFormatException n) {
             return false;
         }
 
-        if(!current_user.getPassword().equals(password))
+        if (!current_user.getPassword().equals(password))
             return false;
 
-        if(username.equals("")||hometown.equals("")||zip.equals(""))
+        if (username.equals("") || hometown.equals("") || zip.equals(""))
             return false;
 
-        for(User user: this.all_user)
-        if(user.getUsername().equals(username))
-            return false;
+        if (!current_user.getUsername().equals(username)) {
+            for (User user : this.all_user)
+                if (user.getUsername().equals(username))
+                    return false;
+        }
 
         ArrayList<String> mem = search(zip);
         boolean bool = false;
 
-        for (String line: mem)
-            if(line.split(";")[1].equals(hometown)) {
+        for (String line : mem)
+            if (line.split(";")[1].equals(hometown)) {
                 bool = true;
                 break;
-        }
+            }
 
-        if(!bool)
+        if (!bool)
             return false;
 
-        
-        for(int i = 0; i< this.all_user.size(); i++)
-            if(this.all_user.get(i).getUsername().equals(current_user.getUsername()))
+        for (int i = 0; i < this.all_user.size(); i++)
+            if (this.all_user.get(i).getUsername().equals(current_user.getUsername()))
                 this.all_user.remove(i);
 
         write_to_file(all_user_toString(), "src/main/resources/user_data.csv");
         write_to_file(all_user_toString(), "src/test/resources/user_data.csv");
 
-        this.current_user = new User(username, password, hometown, zip, car_name, car_l_100km, car_avg_kmh, bike_avg_kmh);
+        this.current_user = new User(username, password, hometown, zip, car_name, car_l_100km, car_avg_kmh,
+                bike_avg_kmh);
         this.all_user.add(current_user);
 
         write_to_file(all_user_toString(), "src/main/resources/user_data.csv");
@@ -215,15 +218,18 @@ public class System {
 
     }
 
-    public boolean change_user_password(String old_password, String new_password, String new_password_authentication){
-        if(!this.current_user.getPassword().equals(old_password))
+    public boolean change_user_password(String old_password, String new_password, String new_password_authentication) {
+        if (!this.current_user.getPassword().equals(old_password))
             return false;
 
-        if(!new_password.equals(new_password_authentication))
+        if (!new_password.equals(new_password_authentication))
             return false;
 
-        for(int i = 0; i< this.all_user.size(); i++)
-            if(this.all_user.get(i).getUsername().equals(current_user.getUsername()))
+        if(old_password.equals(new_password))
+            return false;
+
+        for (int i = 0; i < this.all_user.size(); i++)
+            if (this.all_user.get(i).getUsername().equals(current_user.getUsername()))
                 this.all_user.remove(i);
 
         write_to_file(all_user_toString(), "src/main/resources/user_data.csv");
@@ -247,7 +253,7 @@ public class System {
             }
             writer.write(lines.getLast());
         } catch (IOException e) {
-        //
+            //
         }
     }
 
@@ -255,12 +261,12 @@ public class System {
         current_user = new User();
     }
 
-    public String[] getDetails(){
-        return new String[]{current_user.getUsername(), current_user.getHometown(), 
+    public String[] getDetails() {
+        return new String[] { current_user.getUsername(), current_user.getHometown(),
                 current_user.getZip(), current_user.getCar_name(),
-                current_user.getCar_l_100km()==0?"":String.valueOf(current_user.getCar_l_100km()),
-                current_user.getCar_avg_kmh()==0?"":String.valueOf(current_user.getCar_avg_kmh()), 
-                current_user.getBike_avg_kmh()==0?"":String.valueOf(current_user.getBike_avg_kmh())};
+                current_user.getCar_l_100km() == 0 ? "" : String.valueOf(current_user.getCar_l_100km()),
+                current_user.getCar_avg_kmh() == 0 ? "" : String.valueOf(current_user.getCar_avg_kmh()),
+                current_user.getBike_avg_kmh() == 0 ? "" : String.valueOf(current_user.getBike_avg_kmh()) };
     }
 
     public ArrayList<String> search(String hometown_or_zip) {
@@ -273,11 +279,12 @@ public class System {
             String line;
             while ((line = reader.readLine()) != null && zip_set.size() < 200) {
                 line = line.replace("\"", "");
-                if (line.split(";")[0].contains(hometown_or_zip)||line.split(";")[1].contains(hometown_or_zip)) 
+                if (line.split(";")[0].toUpperCase().startsWith(hometown_or_zip.toUpperCase()) 
+                    || line.split(";")[1].toUpperCase().startsWith(hometown_or_zip.toUpperCase()))
                     zip_set.add(line);
             }
         } catch (Exception e) {
-        //
+            //
         }
 
         return new ArrayList<>(zip_set);
@@ -289,12 +296,12 @@ public class System {
         ArrayList<String> result = new ArrayList<>();
         int random = 0;
 
-        for(Destination destination: this.all_destinations.values()){
-            if(destination.getDistance_from_user()>150)
+        for (Destination destination : this.all_destinations.values()) {
+            if (destination.getDistance_from_user() > 150)
                 mem.add(destination);
         }
 
-        for (int i = 0; i < 3; i++){
+        for (int i = 0; i < 3; i++) {
             random = (int) (Math.random() * mem.size());
             result.add(mem.get(random).getZip() + ";" + mem.get(random).getTown());
         }
@@ -307,12 +314,12 @@ public class System {
         ArrayList<String> result = new ArrayList<>();
         int random = 0;
 
-        for(Destination destination: this.all_destinations.values()){
-            if(destination.getDistance_from_user()<100)
+        for (Destination destination : this.all_destinations.values()) {
+            if (destination.getDistance_from_user() < 100)
                 mem.add(destination);
         }
 
-        for (int i = 0; i < 3; i++){
+        for (int i = 0; i < 3; i++) {
             random = (int) (Math.random() * mem.size());
             result.add(mem.get(random).getZip() + ";" + mem.get(random).getTown());
         }
@@ -320,13 +327,15 @@ public class System {
     }
 
     public String[] destination_details(String destination_zip) {
-        String[] result = new String[5];
+        String[] result = new String[7];
 
-        result[0] = distance(destination_zip); // Entfernung
-        result[1] = travel_time(destination_zip)[0]; // Reisedauer Auto
-        result[2] = travel_time(destination_zip)[1]; // Reisedauer Fahrrad
-        result[3] = calc_l_consumption(destination_zip); // Kraftstoffverbrauch Auto
-        result[4] = weather_forecast(destination_zip); // Wettervorhersage für die nächsten 3 Tage
+        result[0] = weather_forecast(destination_zip)[0]; // Wettervorhersage für die nächsten 3 Tage
+        result[1] = weather_forecast(destination_zip)[1];
+        result[2] = weather_forecast(destination_zip)[2];
+        result[3] = distance(destination_zip); // Entfernung
+        result[4] = travel_time(destination_zip)[0]; // Reisedauer Auto
+        result[5] = calc_l_consumption(destination_zip); // Kraftstoffverbrauch Auto
+        result[6] = travel_time(destination_zip)[1]; // Reisedauer Fahrrad
 
         return result;
     }
@@ -338,38 +347,52 @@ public class System {
 
         try {
             HttpClient http_client = HttpClient.newHttpClient();
+            HttpRequest get_request;
             
-            HttpRequest get_request = HttpRequest.newBuilder()
-                    .uri(new URI("https://api.openweathermap.org/data/2.5/weather?zip=" + current_user.getZip() + ",de&appid=" + api_key + "&units=metric&lang=de"))
+            if(current_user.getZip().length()<5){
+                get_request = HttpRequest.newBuilder()
+                    .uri(new URI("https://api.openweathermap.org/data/2.5/weather?q=" + current_user.getHometown()
+                            + ",de&appid=" + api_key + "&units=metric&lang=de"))
                     .GET()
                     .build();
+            }
+            
+            else{
+                get_request = HttpRequest.newBuilder()
+                    .uri(new URI("https://api.openweathermap.org/data/2.5/weather?zip=" + current_user.getZip()
+                            + ",de&appid=" + api_key + "&units=metric&lang=de"))
+                    .GET()
+                    .build();
+            }
             
             HttpResponse<String> get_response = http_client.send(get_request, BodyHandlers.ofString());
 
-            JSONObject json = new JSONObject(((String) get_response.body()).substring(0, ((String) get_response.body()).length()));
+            JSONObject json = new JSONObject(get_response.body());
             weather = json.getJSONArray("weather").getJSONObject(0).getString("description");
             temperature = json.getJSONObject("main").getDouble("temp");
         } catch (Exception e) {
-        //
+            //
         }
 
         if (weather.equals(""))
             return "Es ist ein Fehler aufgetreten!";
         else
-            return weather + ": " + temperature + " °C";
+            return weather + " " + temperature + "°C";
 
     }
 
-    public String weather_forecast(String destination_zip) {
+    public String[] weather_forecast(String destination_zip) {
 
         String weather_day_1 = "";
         String weather_day_2 = "";
         String weather_day_3 = "";
+        String[] result = new String[3];
 
         double temperature_day_1_1 = 1;
         double temperature_day_1_2 = 1;
         double temperature_day_1_3 = 1;
         double temperature_day_1_4 = 1;
+        double temperature_day_1_5 = 1;
 
         TreeSet<Double> temperature_day_1 = new TreeSet<>();
         double temperature_day_1_high = 1;
@@ -379,6 +402,7 @@ public class System {
         double temperature_day_2_2 = 1;
         double temperature_day_2_3 = 1;
         double temperature_day_2_4 = 1;
+        double temperature_day_2_5 = 1;
 
         TreeSet<Double> temperature_day_2 = new TreeSet<>();
         double temperature_day_2_high = 1;
@@ -388,50 +412,147 @@ public class System {
         double temperature_day_3_2 = 1;
         double temperature_day_3_3 = 1;
         double temperature_day_3_4 = 1;
+        double temperature_day_3_5 = 1;
 
         TreeSet<Double> temperature_day_3 = new TreeSet<>();
         double temperature_day_3_high = 1;
         double temperature_day_3_low = 1;
 
+        String day1date = "";
+        String day2date = "";
+        String day3date = "";
 
         try {
             HttpClient http_client = HttpClient.newHttpClient();
+            HttpRequest get_request;
             
-            HttpRequest get_request = HttpRequest.newBuilder()
-                    .uri(new URI("https://api.openweathermap.org/data/2.5/forecast?zip=" + destination_zip + ",de&appid=" + api_key + "&units=metric&lang=de"))
+            if(destination_zip.length()<5){
+                get_request = HttpRequest.newBuilder()
+                    .uri(new URI("https://api.openweathermap.org/data/2.5/forecast?q=" + search(destination_zip).get(0).split(";")[1]
+                            + ",de&appid=" + api_key + "&units=metric&lang=de"))
                     .GET()
                     .build();
+            } 
+            else{
+                get_request = HttpRequest.newBuilder()
+                    .uri(new URI("https://api.openweathermap.org/data/2.5/forecast?zip=" + destination_zip
+                            + ",de&appid=" + api_key + "&units=metric&lang=de"))
+                    .GET()
+                    .build();
+            }
             
             HttpResponse<String> get_response = http_client.send(get_request, BodyHandlers.ofString());
 
-            JSONObject json = new JSONObject(((String) get_response.body()).substring(0, ((String) get_response.body()).length()));
-            weather_day_1 = json.getJSONArray("list").getJSONObject(11).getJSONArray("weather").getJSONObject(0).getString("description");
-            weather_day_2 = json.getJSONArray("list").getJSONObject(19).getJSONArray("weather").getJSONObject(0).getString("description");
-            weather_day_3 = json.getJSONArray("list").getJSONObject(27).getJSONArray("weather").getJSONObject(0).getString("description");
+            JSONObject json = new JSONObject(get_response.body());
 
-            temperature_day_1_1 = json.getJSONArray("list").getJSONObject(8).getJSONObject("main").getDouble("temp");
-            temperature_day_1_2 = json.getJSONArray("list").getJSONObject(10).getJSONObject("main").getDouble("temp");
-            temperature_day_1_3 = json.getJSONArray("list").getJSONObject(12).getJSONObject("main").getDouble("temp");
-            temperature_day_1_4 = json.getJSONArray("list").getJSONObject(14).getJSONObject("main").getDouble("temp");
+            int day1_1 = 0;
+            int day1_2 = 0;
+            int day1_3 = 0;
+            int day1_4 = 0;
+            int day1_5 = 0;
+            int day2_1 = 0;
+            int day2_2 = 0;
+            int day2_3 = 0;
+            int day2_4 = 0;
+            int day2_5 = 0;
+            int day3_1 = 0;
+            int day3_2 = 0;
+            int day3_3 = 0;
+            int day3_4 = 0;
+            int day3_5 = 0;
 
-            temperature_day_2_1 = json.getJSONArray("list").getJSONObject(16).getJSONObject("main").getDouble("temp");
-            temperature_day_2_2 = json.getJSONArray("list").getJSONObject(18).getJSONObject("main").getDouble("temp");
-            temperature_day_2_3 = json.getJSONArray("list").getJSONObject(20).getJSONObject("main").getDouble("temp");
-            temperature_day_2_4 = json.getJSONArray("list").getJSONObject(22).getJSONObject("main").getDouble("temp");
+            for (int i = 0; i < 40; i++) {
 
-            temperature_day_3_1 = json.getJSONArray("list").getJSONObject(24).getJSONObject("main").getDouble("temp");
-            temperature_day_3_2 = json.getJSONArray("list").getJSONObject(26).getJSONObject("main").getDouble("temp");
-            temperature_day_3_3 = json.getJSONArray("list").getJSONObject(28).getJSONObject("main").getDouble("temp");
-            temperature_day_3_4 = json.getJSONArray("list").getJSONObject(30).getJSONObject("main").getDouble("temp");
+                if (json.getJSONArray("list").getJSONObject(i).getString("dt_txt").split(" ")[1].startsWith("00")) {
+                    day1_1 = i + 3; // 9 Uhr
+                    day1_2 = day1_1 + 1; // 12 Uhr
+                    day1_3 = day1_2 + 1; // 15 Uhr
+                    day1_4 = day1_3 + 1; // 18 Uhr
+                    day1_5 = day1_4 + 1; // 21 Uhr
+                    break;
+                }
+            }
+
+            for (int i = day1_5; i < 40; i++) {
+
+                if (json.getJSONArray("list").getJSONObject(i).getString("dt_txt").split(" ")[1].startsWith("00")) {
+                    day2_1 = i + 3; // 9 Uhr
+                    day2_2 = day2_1 + 1; // 12 Uhr
+                    day2_3 = day2_2 + 1; // 15 Uhr
+                    day2_4 = day2_3 + 1; // 18 Uhr
+                    day2_5 = day2_4 + 1; // 21 Uhr
+                    break;
+                }
+            }
+
+            for (int i = day2_5 + 1; i < 40; i++) {
+
+                if (json.getJSONArray("list").getJSONObject(i).getString("dt_txt").split(" ")[1].startsWith("00")) {
+                    day3_1 = i + 3; // 9 Uhr
+                    day3_2 = day3_1 + 1; // 12 Uhr
+                    day3_3 = day3_2 + 1; // 15 Uhr
+                    day3_4 = day3_3 + 1; // 18 Uhr
+                    day3_5 = day3_4 + 1; // 21 Uhr
+                    break;
+                }
+            }
+
+            day1date = json.getJSONArray("list").getJSONObject(day1_1).getString("dt_txt").split(" ")[0];
+            day1date = day1date.split("-")[2] + "." + day1date.split("-")[1] + "." + day1date.split("-")[0];
+            day2date = json.getJSONArray("list").getJSONObject(day2_1).getString("dt_txt").split(" ")[0];
+            day2date = day2date.split("-")[2] + "." + day2date.split("-")[1] + "." + day2date.split("-")[0];
+            day3date = json.getJSONArray("list").getJSONObject(day3_1).getString("dt_txt").split(" ")[0];
+            day3date = day3date.split("-")[2] + "." + day3date.split("-")[1] + "." + day3date.split("-")[0];
+
+            weather_day_1 = json.getJSONArray("list").getJSONObject(day1_3).getJSONArray("weather").getJSONObject(0)
+                    .getString("description");
+            weather_day_2 = json.getJSONArray("list").getJSONObject(day2_3).getJSONArray("weather").getJSONObject(0)
+                    .getString("description");
+            weather_day_3 = json.getJSONArray("list").getJSONObject(day3_3).getJSONArray("weather").getJSONObject(0)
+                    .getString("description");
+
+            temperature_day_1_1 = json.getJSONArray("list").getJSONObject(day1_1).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_1_2 = json.getJSONArray("list").getJSONObject(day1_2).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_1_3 = json.getJSONArray("list").getJSONObject(day1_3).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_1_4 = json.getJSONArray("list").getJSONObject(day1_4).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_1_5 = json.getJSONArray("list").getJSONObject(day1_5).getJSONObject("main")
+                    .getDouble("temp");
+
+            temperature_day_2_1 = json.getJSONArray("list").getJSONObject(day2_1).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_2_2 = json.getJSONArray("list").getJSONObject(day2_2).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_2_3 = json.getJSONArray("list").getJSONObject(day2_3).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_2_4 = json.getJSONArray("list").getJSONObject(day2_4).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_2_5 = json.getJSONArray("list").getJSONObject(day2_5).getJSONObject("main")
+                    .getDouble("temp");
+
+            temperature_day_3_1 = json.getJSONArray("list").getJSONObject(day3_1).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_3_2 = json.getJSONArray("list").getJSONObject(day3_2).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_3_3 = json.getJSONArray("list").getJSONObject(day3_3).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_3_4 = json.getJSONArray("list").getJSONObject(day3_4).getJSONObject("main")
+                    .getDouble("temp");
+            temperature_day_3_5 = json.getJSONArray("list").getJSONObject(day3_5).getJSONObject("main")
+                    .getDouble("temp");
 
         } catch (Exception e) {
-        //
+            //
         }
 
         temperature_day_1.add(temperature_day_1_1);
         temperature_day_1.add(temperature_day_1_2);
         temperature_day_1.add(temperature_day_1_3);
         temperature_day_1.add(temperature_day_1_4);
+        temperature_day_1.add(temperature_day_1_5);
 
         temperature_day_1_high = (double) temperature_day_1.toArray()[temperature_day_1.size() - 1];
         temperature_day_1_low = (double) temperature_day_1.toArray()[0];
@@ -440,24 +561,34 @@ public class System {
         temperature_day_2.add(temperature_day_2_2);
         temperature_day_2.add(temperature_day_2_3);
         temperature_day_2.add(temperature_day_2_4);
+        temperature_day_2.add(temperature_day_2_5);
 
-        temperature_day_2_high = (double) temperature_day_2.toArray()[temperature_day_1.size() - 1];
+        temperature_day_2_high = (double) temperature_day_2.toArray()[temperature_day_2.size() - 1];
         temperature_day_2_low = (double) temperature_day_2.toArray()[0];
 
         temperature_day_3.add(temperature_day_3_1);
         temperature_day_3.add(temperature_day_3_2);
         temperature_day_3.add(temperature_day_3_3);
         temperature_day_3.add(temperature_day_3_4);
+        temperature_day_3.add(temperature_day_3_5);
 
-        temperature_day_3_high = (double) temperature_day_3.toArray()[temperature_day_1.size() - 1];
+        temperature_day_3_high = (double) temperature_day_3.toArray()[temperature_day_2.size() - 1];
         temperature_day_3_low = (double) temperature_day_3.toArray()[0];
 
-        if (weather_day_1.equals("") || weather_day_2.equals("") || weather_day_3.equals(""))
-            return "Es ist ein Fehler aufgetreten!";
-        else
-            return "Morgen: " + weather_day_1 + ": Minimum: " + temperature_day_1_low + " °C" + "; Maximum: " + temperature_day_1_high + " °C\n"
-                    + "Übermorgen: " + weather_day_2 + ": Minimum: " + temperature_day_2_low + " °C" + "; Maximum: " + temperature_day_2_high + " °C\n"
-                    + "Überübermorgen: " + weather_day_3 + ": Minimum: " + temperature_day_3_low + " °C" + "; Maximum: " + temperature_day_3_high + " °C";
+        if (weather_day_1.equals("") || weather_day_2.equals("") || weather_day_3.equals("")) {
+            result[0] = "Es ist ein Fehler aufgetreten!";
+            result[1] = "Es ist ein Fehler aufgetreten!";
+            result[2] = "Es ist ein Fehler aufgetreten!";
+        } else {
+            result[0] = day1date + ": " + weather_day_1 + " H: " + temperature_day_1_high + "°C" + " T: "
+                    + temperature_day_1_low + "°C";
+            result[1] = day2date + ": " + weather_day_2 + " H: " + temperature_day_2_high + "°C" + " T: "
+                    + temperature_day_2_low + "°C";
+            result[2] = day3date + ": " + weather_day_3 + " H: " + temperature_day_3_high + "°C" + " T: "
+                    + temperature_day_3_low + "°C";
+        }
+
+        return result;
     }
 
     public boolean all_distances() {
@@ -485,7 +616,7 @@ public class System {
                 }
             }
         } catch (Exception e) {
-        //
+            //
         }
 
         InputStream inputStream2 = System.class.getResourceAsStream("/zip.csv");
@@ -504,23 +635,26 @@ public class System {
                 dLat = lat2 - lat1;
                 dLon = lon2 - lon1;
 
-                a = Math.pow(Math.sin(Math.toRadians(dLat / 2.0)), 2) + Math.pow(Math.sin(Math.toRadians(dLon / 2.0)), 2) * Math.cos(Math.toRadians(lat1)) * Math.cos(Math.toRadians(lat2));
+                a = Math.pow(Math.sin(Math.toRadians(dLat / 2.0)), 2)
+                        + Math.pow(Math.sin(Math.toRadians(dLon / 2.0)), 2) * Math.cos(Math.toRadians(lat1))
+                                * Math.cos(Math.toRadians(lat2));
 
                 distance = 6378.388 * 2.0 * Math.atan2(Math.sqrt(a), Math.sqrt(1.0 - a));
 
-                result = Math.round(distance * 1.25 * 1000) / 1000.0;
+                result = Math.round(distance * 1.25 * 100) / 100.0;
 
-                this.all_destinations.put(line.split(";")[0],new Destination(line.split(";")[1],line.split(";")[0], result));
+                this.all_destinations.put(line.split(";")[0],
+                        new Destination(line.split(";")[1], line.split(";")[0], result));
 
             }
         } catch (Exception e) {
-        //
+            //
         }
 
         return true;
     }
 
-    public String distance(String destination_zip){
+    public String distance(String destination_zip) {
 
         return "" + this.all_destinations.get(destination_zip).getDistance_from_user() + " km";
 
@@ -530,16 +664,27 @@ public class System {
 
         String[] result = new String[2];
 
-        result[0] = "" + (Math.round(Double.parseDouble(distance(destination_zip).replace(" km", "")) / current_user.getCar_avg_kmh() * 1000) / 1000.0) + " h";
-        result[1] = "" + (Math.round(Double.parseDouble(distance(destination_zip).replace(" km", "")) / current_user.getBike_avg_kmh() * 1000) / 1000.0) + " h";
+        if (current_user.getCar_avg_kmh() == 0)
+            result[0] = "";
+        else
+            result[0] = "" + (Math.round(Double.parseDouble(distance(destination_zip).replace(" km", ""))
+                    / current_user.getCar_avg_kmh() * 100) / 100.0) + " h";
+
+        if (current_user.getBike_avg_kmh() == 0)
+            result[1] = "";
+        else
+            result[1] = "" + (Math.round(Double.parseDouble(distance(destination_zip).replace(" km", ""))
+                    / current_user.getBike_avg_kmh() * 100) / 100.0) + " h";
 
         return result;
     }
 
     public String calc_l_consumption(String destination_zip) {
 
-        return "" + (Math.round(Double.parseDouble(distance(destination_zip).replace(" km", "")) * current_user.getCar_l_100km() / 100.0 * 1000) / 1000.0) + " l";
+        if (current_user.getCar_l_100km() == 0)
+            return "";
+        return "" + (Math.round(Double.parseDouble(distance(destination_zip).replace(" km", ""))
+                * current_user.getCar_l_100km() / 100.0 * 100) / 100.0) + " l";
 
     }
 }
-

src/test/java/de/hs_mannheim/domain/SystemTest.java

@@ -12,21 +12,23 @@ public class SystemTest {
     System current_system = new System("35a75437476f12302f72e55d368485db");
 
     @Test
-    public void weather_forecast(){
+    public void weather_forecast() {
 
-        assertNotEquals("Es ist ein Fehler aufgetreten!",current_system.weather_forecast("68161"));
+        current_system.sign_in_user("David", "123Esel");
+
+        assertNotEquals("Es ist ein Fehler aufgetreten!", current_system.weather_forecast("68161")[0]);
     }
 
     @Test
-    public void current_weather(){
+    public void current_weather() {
 
-        current_system.sign_in_user("David","123Esel");
+        current_system.sign_in_user("David", "123Esel");
 
-        assertNotEquals("Es ist ein Fehler aufgetreten!",current_system.current_weather());
+        assertNotEquals("Es ist ein Fehler aufgetreten!", current_system.current_weather());
     }
 
     @Test
-    public void search(){
+    public void search() {
 
         ArrayList<String> list = current_system.search("Mannheim");
 
@@ -36,69 +38,73 @@ public class SystemTest {
     }
 
     @Test
-    public void distance(){
+    public void distance() {
 
-        current_system.sign_in_user("David","123Esel");
+        current_system.sign_in_user("David", "123Esel");
 
         assertEquals("88.46 km", current_system.distance("60306")); // Frankfurt
-        assertEquals("581.109 km", current_system.distance("20095")); // Hamburg
-        assertEquals("603.608 km", current_system.distance("10115")); // Berlin
+        assertEquals("581.11 km", current_system.distance("20095")); // Hamburg
+        assertEquals("603.61 km", current_system.distance("10115")); // Berlin
 
     }
 
     @Test
-    public void travel_time(){
+    public void travel_time() {
 
-        current_system.sign_in_user("David","123Esel");
+        current_system.sign_in_user("David", "123Esel");
 
-        assertEquals("0.885 h", current_system.travel_time("60306")[0]); // Frankfurt mit Auto
-        assertEquals("4.423 h", current_system.travel_time("60306")[1]); // Frankfurt mit Fahrrad
+        assertEquals("0.88 h", current_system.travel_time("60306")[0]); // Frankfurt mit Auto
+        assertEquals("4.42 h", current_system.travel_time("60306")[1]); // Frankfurt mit Fahrrad
 
-        assertEquals("6.036 h", current_system.travel_time("10115")[0]); // Berlin mit Auto
+        assertEquals("6.04 h", current_system.travel_time("10115")[0]); // Berlin mit Auto
         assertEquals("30.18 h", current_system.travel_time("10115")[1]); // Berlin mit Fahrrad
     }
 
     @Test
-    public void calc_l_consumption(){
+    public void calc_l_consumption() {
 
-        current_system.sign_in_user("David","123Esel");
+        current_system.sign_in_user("David", "123Esel");
 
-        assertEquals("8.846 l", current_system.calc_l_consumption("60306")); // Kraftstoffverbrauch nach Frankfurt
-        assertEquals("58.111 l", current_system.calc_l_consumption("20095")); // Kraftstoffverbrauch nach Hamburg
-        assertEquals("60.361 l", current_system.calc_l_consumption("10115")); // Kraftstoffverbrauch nach Berlin
+        assertEquals("8.85 l", current_system.calc_l_consumption("60306")); // Kraftstoffverbrauch nach Frankfurt
+        assertEquals("58.11 l", current_system.calc_l_consumption("20095")); // Kraftstoffverbrauch nach Hamburg
+        assertEquals("60.36 l", current_system.calc_l_consumption("10115")); // Kraftstoffverbrauch nach Berlin
     }
 
     @Test
-    public void random_destinations(){
+    public void random_destinations() {
 
-        current_system.sign_in_user("David","123Esel");
+        current_system.sign_in_user("David", "123Esel");
         ArrayList<String> random_destination_car = current_system.random_destinations_car();
         ArrayList<String> random_destination_bike = current_system.random_destinations_bike();
 
         assertEquals(3, random_destination_car.size()); // random_destinations_car gibt genau 3 destinations zurück
         assertEquals(3, random_destination_bike.size()); // random destinations_bike gibt genau 3 destinations zurück
 
-        // random_destinations_car gibt nur destinations mit mindestens 150 km Entfernung zurück
-        assertEquals(true, Double.parseDouble(current_system.distance(random_destination_car.get(0).split(";")[0]).replace(" km", "")) > 150);
-        // random_destinations_bike gibt nur destinations mit maximal 100 km Entfernung zurück
-        assertEquals(true, Double.parseDouble(current_system.distance(random_destination_bike.get(0).split(";")[0]).replace(" km", "")) < 100);
+        // random_destinations_car gibt nur destinations mit mindestens 150 km
+        // Entfernung zurück
+        assertEquals(true, Double.parseDouble(
+                current_system.distance(random_destination_car.get(0).split(";")[0]).replace(" km", "")) > 150);
+        // random_destinations_bike gibt nur destinations mit maximal 100 km Entfernung
+        // zurück
+        assertEquals(true, Double.parseDouble(
+                current_system.distance(random_destination_bike.get(0).split(";")[0]).replace(" km", "")) < 100);
     }
 
     @Test
-    public void encoding(){
+    public void encoding() {
 
         String test_password = "123Esel";
 
-        assertEquals("MTIzRXNlbA==",System.encoding(test_password));
+        assertEquals("MTIzRXNlbA==", System.encoding(test_password));
 
     }
 
     @Test
-    public void decoding(){
+    public void decoding() {
 
         String test_password = "MTIzRXNlbA==";
 
-        assertEquals("123Esel",System.decoding(test_password));
+        assertEquals("123Esel", System.decoding(test_password));
 
     }
 
@@ -106,7 +112,7 @@ public class SystemTest {
     public void sign_in_user() {
 
         assertEquals(true, current_system.sign_in_user("Daniel", "1401Daniel"));
-        assertEquals("Daniel",current_system.getDetails()[0]);
+        assertEquals("Daniel", current_system.getDetails()[0]);
 
     }
 
@@ -114,29 +120,33 @@ public class SystemTest {
     public void sign_out_user() {
 
         assertEquals(true, current_system.sign_in_user("David", "123Esel"));
-        assertEquals("David",current_system.getDetails()[0]);
+        assertEquals("David", current_system.getDetails()[0]);
         current_system.sign_out_user();
-        assertEquals("",current_system.getDetails()[0]);
+        assertEquals("", current_system.getDetails()[0]);
 
     }
 
     @Test
-    public void sign_up_user(){
+    public void sign_up_user() {
         // Username darf nicht doppelt vorkommen!
-        assertEquals(false, current_system.sign_up_user("David","123Esel","123Esel","Mannheim","68161","AMG","10","300","20"));
-        assertEquals(true, current_system.sign_up_user("Selim","Penis69","Penis69","Mannheim","68161","AMG","10","300","20"));
+        assertEquals(false, current_system.sign_up_user("David", "123Esel", "123Esel", "Mannheim", "68161", "AMG", "10",
+                "300", "20"));
+        assertEquals(true, current_system.sign_up_user("Selim", "Penis69", "Penis69", "Mannheim", "68161", "AMG", "10",
+                "300", "20"));
         // PLZ muss mit Stadt übereinstimmen
-        assertEquals(false, current_system.sign_up_user("Lukas","123Esel","123Esel","Mannheim","11105","AMG","10","300","20"));
-        assertEquals(true, current_system.sign_up_user("Lukas","123Esel","123Esel","Mannheim","68305","AMG","10","300","20"));
+        assertEquals(false, current_system.sign_up_user("Lukas", "123Esel", "123Esel", "Mannheim", "11105", "AMG", "10",
+                "300", "20"));
+        assertEquals(true, current_system.sign_up_user("Lukas", "123Esel", "123Esel", "Mannheim", "68305", "AMG", "10",
+                "300", "20"));
 
-        assertEquals("Lukas",current_system.getDetails()[0]);
+        assertEquals("Lukas", current_system.getDetails()[0]);
         current_system.sign_out_user();
-        assertEquals("",current_system.getDetails()[0]);
-        assertEquals(true, current_system.sign_in_user("Lukas","123Esel"));
+        assertEquals("", current_system.getDetails()[0]);
+        assertEquals(true, current_system.sign_in_user("Lukas", "123Esel"));
     }
 
     @Test
-    public void change_user_details(){
+    public void change_user_details() {
 
         current_system.sign_in_user("David", "123Esel");
         current_system.change_user_details("Enes", "123Esel", "Mannheim", "68161", "", "", "", "");
@@ -146,7 +156,7 @@ public class SystemTest {
     }
 
     @Test
-    public void change_user_password(){
+    public void change_user_password() {
 
         current_system.sign_in_user("David", "123Esel");
         assertEquals(true, current_system.change_user_password("123Esel", "Pizza69", "Pizza69"));
@@ -157,11 +167,10 @@ public class SystemTest {
         ;
 
     }
-/*
-Tests auf Basis von user_data.csv:  
-Daniel;MTQwMURhbmllbA==;Mannheim;68305;BMW;1.5;50.4;40.2
-David;MTIzRXNlbA==;Mannheim;68161;AMG;10.0;100.0;20.0
-*/
-
+    /*
+     * Tests auf Basis von user_data.csv:
+     * Daniel;MTQwMURhbmllbA==;Mannheim;68305;BMW;1.5;50.4;40.2
+     * David;MTIzRXNlbA==;Mannheim;68161;AMG;10.0;100.0;20.0
+     */
 
 }