diff --git a/src/Client/src/main/java/greenify/client/Hints.java b/src/Client/src/main/java/greenify/client/Hints.java
index 34aa3fb..95f010d 100644
--- a/src/Client/src/main/java/greenify/client/Hints.java
+++ b/src/Client/src/main/java/greenify/client/Hints.java
@@ -56,7 +56,7 @@ public class Hints {
     }
 
     /**
-     * This method returns a random hint from the list of hints.
+     * This method gets a random hint from the list of hints.
      * @return the random hint.
      */
     public String randomHint() {
diff --git a/src/Server/src/main/java/greenify/server/service/CalculatorService.java b/src/Server/src/main/java/greenify/server/service/CalculatorService.java
index 4258c3b..26ee5ca 100644
--- a/src/Server/src/main/java/greenify/server/service/CalculatorService.java
+++ b/src/Server/src/main/java/greenify/server/service/CalculatorService.java
@@ -77,6 +77,10 @@ public class CalculatorService {
         return footprint;
     }
 
+    /**
+     * This method adds extra input to the user.
+     * @param user name of the user
+     */
     public void addExtras(User user) {
         if (user.getExtraInputs().get("local_produce")) {
             user.setFootPrint(user.getFootPrint() - 2);
diff --git a/src/Server/src/test/java/greenify/server/service/CalculatorServiceTest.java b/src/Server/src/test/java/greenify/server/service/CalculatorServiceTest.java
index d252949..caace32 100644
--- a/src/Server/src/test/java/greenify/server/service/CalculatorServiceTest.java
+++ b/src/Server/src/test/java/greenify/server/service/CalculatorServiceTest.java
@@ -96,19 +96,21 @@ public class CalculatorServiceTest {
     public void addExtrasTest() throws URISyntaxException {
         User user = new User(1L,"greenify", "password");
         Map<String,Boolean> map = new HashMap<String, Boolean>() {{
-            put("local_produce", false);
-            put("bike", false);
-            put("temperature", false);
-            put("solar_panels", false);
-        }};
+                put("local_produce", false);
+                put("bike", false);
+                put("temperature", false);
+                put("solar_panels", false);
+            }
+        };
         user.setExtraInputs(map);
         user.setFootPrint(50f);
         Map<String,Boolean> secondMap = new HashMap<String, Boolean>() {{
-            put("local_produce", true);
-            put("bike", true);
-            put("temperature", true);
-            put("solar_panels", true);
-        }};
+                put("local_produce", true);
+                put("bike", true);
+                put("temperature", true);
+                put("solar_panels", true);
+            }
+        };
         user.setExtraInputs(secondMap);
         calculatorService.addExtras(user);
         mockServer.verify();