diff --git a/src/Aufgabe2Test.java b/src/Aufgabe2Test.java
index b4be58d..39b521d 100644
--- a/src/Aufgabe2Test.java
+++ b/src/Aufgabe2Test.java
@@ -1,7 +1,6 @@
 public class Aufgabe2Test {
 
     public static void main(String[] args) {
-
         //test classes BodyQueue and BodyForceMap
 
         // create three bodies
@@ -49,7 +48,6 @@ public class Aufgabe2Test {
         bfm.put(earth, new Vector3(0,0,0));
         testValue(bfm.get(earth).distanceTo(new Vector3(0,0,0)), 0);
         testValue(bfm.get(mercury),null);
-
     }
 
     public static void testComparison(Object first, Object second, boolean expected) {
diff --git a/src/Aufgabe3Test.java b/src/Aufgabe3Test.java
index b2002a9..8a3f81f 100644
--- a/src/Aufgabe3Test.java
+++ b/src/Aufgabe3Test.java
@@ -3,7 +3,6 @@ import java.util.Objects;
 public class Aufgabe3Test {
 
     public static void main(String[] args) {
-
         //test classes BodyLinkedList and BodyForceTreeMap
 
         // create five bodies
@@ -78,10 +77,9 @@ public class Aufgabe3Test {
         testValue(bfm.get(earth).distanceTo(earth.gravitationalForce(sun)), 0);
         testValue(bfm.get(sun).distanceTo(sun.gravitationalForce(earth).plus(sun.gravitationalForce(venus))), 0);
 
+        testValue(bfm.put(earth, new Vector3(0, 0, 0)).distanceTo(earth.gravitationalForce(sun)), 0);
         testValue(bfm.get(mercury).distanceTo(mercury.gravitationalForce(sun)), 0);
-        testValue(bfm.get(earth).distanceTo(new Vector3(0, 0, 0)), 0);
         testValue(bfm.get(mercury), mercury.gravitationalForce(sun));
-
     }
 
     public static void testComparison(Object first, Object second, boolean expected) {
@@ -95,7 +93,7 @@ public class Aufgabe3Test {
     }
 
     public static void testValue(Object given, Object expected) {
-        if (given == expected) {
+        if (Objects.equals(given, expected)) {
             System.out.println("Successful test");
         } else {
             System.out.println("Test NOT successful! Expected value: " + expected + " / Given value: " + given);