fixed test for C3PO and added comments

src/main/java/roboter/C3PO.java

@@ -21,16 +21,25 @@ public class C3PO implements Robot {
         this.name = name;
     }
     
+    /**
+     * @return id of the robot C3PO
+     */
     @Override
     public int getId() {
         return id;
     }
     
+    /**
+     * @return name of the robot
+     */
     @Override
     public String getName() {
         return name;
     }
     
+    /**
+     * @return isPorwerOn true if it's false
+     */
     @Override
     public void triggerPowerSwitch() {
         if (isPowerOn == false) {
@@ -39,13 +48,18 @@ public class C3PO implements Robot {
             isPowerOn = false;
         }
     }
-    //tes test
     
+    /**
+     * @return isPowerOn
+     */
     @Override
     public boolean isPowerOn() {
         return isPowerOn;
     }
 
+    /**
+     * creating a RobotException getLastException
+     */
     @Override
     public RobotException getLastException() {
         if (!exceptionList.isEmpty()){
@@ -55,6 +69,11 @@ public class C3PO implements Robot {
         return null;
     }
 
+    /**
+     * speak method that returns the sorted and formated numbers from the array zahlen
+     * @param int[] zahlen Array of numbers for sorting
+     * @return sorted and formated numbers 
+     */
     @Override
     public String speak(int[] zahlen) throws RobotException, RobotMagicValueException {
         if(!isPowerOn){
@@ -71,7 +90,14 @@ public class C3PO implements Robot {
 
         return arrayFormatieren(sortiert);
     }
-
+    /**
+    *method to format the outcome
+    * Returns a Stream consisting of the elements of this stream,each boxed to an Integer 
+    * and maps it into a String
+    * each element of the Stream is separated by ","
+    * @param int[] zahlen Array of numbers to sort
+    * @return formated outcome
+    */
     private String arrayFormatieren(int[] zahlen) throws RobotMagicValueException {
 
         var ergebnis = Arrays.stream(zahlen)
@@ -81,6 +107,12 @@ public class C3PO implements Robot {
         return ergebnis;
     }
 
+    /**
+     * method that sorts the array zahlen with the Selectionsort-Algorithmin in descending order
+     * if the array zahlen contains the number 42 the RobotMagicValueException is thrown and added to the exception list
+     * @param int[] zahlen Array of numbers for sorting
+     * @return array of numbers in descending order
+     */
     @Override
     public int[] think(int[] zahlen) throws RobotException {
         if(!isPowerOn){

src/main/java/roboter/Nexus6.java

@@ -26,12 +26,17 @@ public class Nexus6 implements Robot {
         return instance;
     }
     
-   
+    /**
+     * @return id of the robot
+     */
     @Override
     public int getId() {
         return id;
     }
 
+    /**
+     * @return name of the robot
+     */
     @Override
     public String getName() {
         return name;
@@ -42,7 +47,10 @@ public class Nexus6 implements Robot {
 
     }
     
-
+    /**
+     * Nexus can be turned on but it has no funktionality
+     * @return PowerisOn
+     */
     @Override
     public boolean isPowerOn() {
         return isPowerOn;
@@ -56,7 +64,11 @@ public class Nexus6 implements Robot {
         }
         return null;
     }
-
+    /**
+     * Nexus 6 can't format the sorted numbers so an exception RobotIllegalStateException is thrown 
+     * and added to the exception list
+     *  * @param int[] zahlen Array
+     */
     @Override
     public String speak(int[] zahlen) throws RobotIllegalStateException {
         var newException = new RobotIllegalStateException(this);
@@ -65,7 +77,11 @@ public class Nexus6 implements Robot {
 
     }
 
-
+    /**
+     * Nexus 6 can't sort the numbers so an exception RobotIllegalStateException is thrown 
+     * and added to the exception list
+     *  * @param int[] zahlen Array
+     */
     @Override
     public int[] think(int[] zahlen) throws RobotIllegalStateException {
         var newException2=new RobotIllegalStateException(this);

src/main/java/roboter/R2D2.java

@@ -20,17 +20,25 @@ public class R2D2 implements Robot {
     }
 
 
-
+    /**
+     * @return id of the robot
+     */
     @Override
     public int getId() {
         return id;
     }
 
+    /**
+     * @return name of the robot
+     */
     @Override
     public String getName() {
         return name;
     }
 
+    /**
+     * @return isPorwerOn true if it's false
+     */
     @Override
     public void triggerPowerSwitch() {
     if(isPowerOn==false){
@@ -40,11 +48,17 @@ public class R2D2 implements Robot {
     }
     }
 
+    /**
+     * @return isPowerOn
+     */
     @Override
     public boolean isPowerOn() {
         return isPowerOn;
     }
 
+    /**
+     * creating a RobotException getLastException
+     */
     @Override
     public RobotException getLastException() {
         if (!exceptionList.isEmpty()){
@@ -54,6 +68,12 @@ public class R2D2 implements Robot {
         return null;
     }
 
+    /**
+     * speak method that returns the sorted and formated numbers from the array zahlen
+     * if the array zahlen contains the number 42 the RobotMagicValueException is thrown and added to the exception list
+     * @param int[] zahlen Array of numbers for sorting
+     * @return sorted and formated numbers 
+     */
     @Override
     public String speak(int[] zahlen) throws RobotException, RobotMagicValueException {
         if(!isPowerOn){
@@ -71,6 +91,14 @@ public class R2D2 implements Robot {
         return arrayFormatieren(sortiert);
     }
 
+    /**
+     * method to format the outcome
+     * Returns a Stream consisting of the elements of this stream,each boxed to an Integer 
+     * and maps it into a String
+     * each element of the Stream is separated by ","
+     * @param int[] zahlen Array of numbers to sort
+     * @return formated outcome
+     */
     private String arrayFormatieren(int[] zahlen){
         var ergebnis = Arrays.stream(zahlen)
                 .boxed()
@@ -78,6 +106,12 @@ public class R2D2 implements Robot {
                 .collect(Collectors.joining(","));
         return ergebnis;
     }
+    
+    /**
+     * method that sorts the array zahlen with the Selectionsort-Algorithmin in ascending order
+     * @param int[] zahlen Array of numbers for sorting
+     * @return array of numbers in ascending order
+     */
     @Override
     public int[] think(int[] zahlen) throws RobotException, RobotMagicValueException {
         if(!isPowerOn){

src/test/java/roboter/C3POTest.java

@@ -33,36 +33,36 @@ public class C3POTest <SystemOutRule, OutputCapture> {
         var list = new int[]{12,6,7,10,18,2};
         Robot robot=  RobotFactory.getRobot(Typ.C3PO,"roboter2");
 
-        Assert.assertEquals("18,12,10,7,6,2",robot.speak(list));
+        Assert.assertEquals("18;12;10;7;6;2",robot.speak(list));
         
         var list1 = new int[] {17,10,19,1,4,2,7};
-        Assert.assertEquals("19,17,10,7,4,2,1", robot.speak(list));
+        Assert.assertEquals("19;17;10;7;4;2;1", robot.speak(list));
         
         var list2 = new int[] {3,17,7,20,5,15,8};
-        Assert.assertEquals("20,17,15,8,7,5,3", robot.speak(list));
+        Assert.assertEquals("20;17;15;8;7;5;3", robot.speak(list));
         
         var list3 = new int[] {13,8,5,12,1,9,7};
-        Assert.assertEquals("13,12,9,8,7,5,1", robot.speak(list));
+        Assert.assertEquals("13;12;9;8;7;5;1", robot.speak(list));
         
         var list4 = new int[] {18,4,21,7,3,2,9};
-        Assert.assertEquals("21,18,9,7,4,3,2", robot.speak(list));
+        Assert.assertEquals("21;18;9;7;4;3;2", robot.speak(list));
         
         var list5 = new int[] {13,23,8,4,22,6};
-        Assert.assertEquals("23,22,13,8,6,4", robot.speak(list));
+        Assert.assertEquals("23;22;13;8;6;4", robot.speak(list));
         
         var list6 = new int[] {10,9,8,7,6,5};
-        Assert.assertEquals("10,9,8,7,6,5", robot.speak(list));
+        Assert.assertEquals("10;9;8;7;6;5", robot.speak(list));
         
         var list7 = new int[] {1,2,3,5,4,6};
-        Assert.assertEquals("6,5,4,3,2,1", robot.speak(list));
+        Assert.assertEquals("6;5;4;3;2;1", robot.speak(list));
         
         var list8 = new int[] {20,19,18,17,16,15};
-        Assert.assertEquals("20,19,18,17,16,15", robot.speak(list));
+        Assert.assertEquals("20;19;18;17;16;15", robot.speak(list));
         
         var list9 = new int[] {15,1,13,10,7,4};
-        Assert.assertEquals("15,13,10,7,4,1", robot.speak(list));
+        Assert.assertEquals("15;13;10;7;4;1", robot.speak(list));
         
         var list10 = new int[] {10,15,11,8,5,6,};
-        Assert.assertEquals("15,11,10,8,6,5", robot.speak(list));
+        Assert.assertEquals("15;11;10;8;6;5", robot.speak(list));
     }
 }