diff --git a/Roboter/tpe/exceptions/roboter/Nexus6.java b/Roboter/tpe/exceptions/roboter/Nexus6.java
index 8d3b462..5fce3e6 100644
--- a/Roboter/tpe/exceptions/roboter/Nexus6.java
+++ b/Roboter/tpe/exceptions/roboter/Nexus6.java
@@ -1,8 +1,9 @@
 package tpe.exceptions.roboter;
 
 import tpe.exceptions.RobotException;
+import tpe.exceptions.RobotIllegalStateException;
 
-public class Nexus6 implements RobotControl, RobotInstructions {
+public class Nexus6 extends Robots {
 	private RobotType robotType;
 	private static int id=19281982;
 	private static String name="Pris";
@@ -11,7 +12,7 @@ public class Nexus6 implements RobotControl, RobotInstructions {
 	
 	  
 	private Nexus6(int id, String name, boolean powerSwitch) {
-		super();
+		super(name);
 		robotType= RobotType.NEXUS6;
 	}
 	  
@@ -19,15 +20,15 @@ public class Nexus6 implements RobotControl, RobotInstructions {
 		return instance;
 	}
 	@Override
-	public String speak(int[] zahlen) {
-		// TODO Auto-generated method stub
-		return null;
+	public String speak(int[] zahlen) throws RobotException {
+		throw new RobotIllegalStateException("Der Roboter ist ausgeschaltet!", this.getName());
+		
 	}
 
 	@Override
-	public int[] think(int[] zahlen) {
-		// TODO Auto-generated method stub
-		return null;
+	public int[] think(int[] zahlen) throws RobotException {
+		throw new RobotIllegalStateException("Der Roboter ist ausgeschaltet!", this.getName());
+		
 	}
 
 	public int getId() {
@@ -35,26 +36,12 @@ public class Nexus6 implements RobotControl, RobotInstructions {
 		return id;
 	}
 
-	@Override
-	public String getName() {
-		return name;
-	}
-
-	@Override
-	public void triggerPowerSwitch() {
-			powerSwitch=false;
-	}
-
-	@Override
-	public boolean isPowerOn() {
-		return powerSwitch;
-	}
-
-
 	@Override
 	public RobotException getLastException() {
 		// TODO Auto-generated method stub
 		return null;
 	}
-
+	public RobotType getRobotType () {
+		return this.robotType;
+	}
 }
diff --git a/Roboter/tpe/exceptions/roboter/R2D2.java b/Roboter/tpe/exceptions/roboter/R2D2.java
index 118f5ed..9eaec30 100644
--- a/Roboter/tpe/exceptions/roboter/R2D2.java
+++ b/Roboter/tpe/exceptions/roboter/R2D2.java
@@ -20,7 +20,10 @@ public class R2D2 extends Robots {
 		this.name = name;
 		robotType= RobotType.R2D2;
 	}
-	
+	@Override
+	public int getId() {
+		return id;
+	}
 	
 	@Override
 	public String speak(int[] zahlen) throws RobotException {
diff --git a/Roboter/tpe/exceptions/roboter/RobotFactory.java b/Roboter/tpe/exceptions/roboter/RobotFactory.java
index 834a29c..054e6ea 100644
--- a/Roboter/tpe/exceptions/roboter/RobotFactory.java
+++ b/Roboter/tpe/exceptions/roboter/RobotFactory.java
@@ -10,22 +10,31 @@ public class RobotFactory {
 	public int constructRobot(RobotType robotType, String name) {
 		Robots robot;
 		if(RobotType.R2D2==robotType) {
-			robot=new R2D2(name, checkID(0,9999));
+			robot=new R2D2(name, createIDR2D2(0,9999));
 			robotStock.put(robot.getId(), robot);
 			return robot.getId();
 		}else if(RobotType.C3PO==robotType) {
-			robot=new C3PO(name, checkID());
+			robot=new C3PO(name, createIDC3PO(10000, 19999));
 			robotStock.put(robot.getId(), robot);
 			return robot.getId();
 		}
 	}
 
-	private int checkID(int minValue, int maxValue) {
+	private int createIDR2D2(int minValue, int maxValue) {
 		
-		int randomID = (int) (Math.random()*(maxValue - minValue)) + minValue;
+		int randomID = (int) (Math.random()*(maxValue)) ;
 		if(robotStock.containsKey(randomID))
 		{
-			checkID(minValue,maxValue);
+			createIDR2D2(minValue,maxValue);
+		}
+		return randomID;
+	}
+	private int createIDC3PO(int minValue, int maxValue) {
+		
+		int randomID = (int) (Math.random()*(maxValue))+minValue ;
+		if(robotStock.containsKey(randomID))
+		{
+			createIDC3PO(minValue,maxValue);
 		}
 		return randomID;
 	}