diff --git a/src/com/company/OnlineShop/Article.java b/src/com/company/OnlineShop/Article.java
new file mode 100644
index 0000000..fd4c021
--- /dev/null
+++ b/src/com/company/OnlineShop/Article.java
@@ -0,0 +1,17 @@
+package com.company.OnlineShop;
+
+import java.net.http.WebSocket;
+
+public class Article {
+    private int articleNumber;
+    private double price;
+
+    public Article(int articleNumber, double price){
+        this.articleNumber = articleNumber;
+        this.price= price;
+    }
+
+    public double getPrice(){
+        return this.price;
+    }
+}
diff --git a/src/com/company/OnlineShop/Book.java b/src/com/company/OnlineShop/Book.java
new file mode 100644
index 0000000..9e202a5
--- /dev/null
+++ b/src/com/company/OnlineShop/Book.java
@@ -0,0 +1,22 @@
+package com.company.OnlineShop;
+
+public class Book extends Article{
+
+    public static double VAT = 0.07;
+    private String author = "";
+    private String title = "";
+    private int year = 0;
+
+    public Book(int articleNumber, double price, String author, String title, int year){
+        super(articleNumber, price);
+        this.author = author;
+        this.title = title;
+        this.year = year;
+    }
+
+
+    public double getPrice(){
+        return super.getPrice() + ( VAT + 1);
+    }
+
+}
diff --git a/src/com/company/OnlineShop/DVD.java b/src/com/company/OnlineShop/DVD.java
new file mode 100644
index 0000000..b4ca036
--- /dev/null
+++ b/src/com/company/OnlineShop/DVD.java
@@ -0,0 +1,21 @@
+package com.company.OnlineShop;
+
+public class DVD extends Article {
+
+    public static double VAT = 0.19;
+    private String Name = "";
+    private int Duration= 0;
+    private int CountryCode = 0;
+
+    public DVD(int articleNumber, double price, String Name, int Duration, int CountryCode){
+        super(articleNumber, price);
+        this.Name = Name;
+        this.Duration = Duration;
+        this.CountryCode = CountryCode;
+    }
+
+
+    public double getPrice(){
+        return super.getPrice() + ( VAT + 1);
+    }
+}
diff --git a/src/com/company/OnlineShop/ShopingCard.java b/src/com/company/OnlineShop/ShopingCard.java
new file mode 100644
index 0000000..cc0e94f
--- /dev/null
+++ b/src/com/company/OnlineShop/ShopingCard.java
@@ -0,0 +1,16 @@
+package com.company.OnlineShop;
+
+public class ShopingCard {
+    public static void main(String[] args){
+        Article article = new Book(10, 34.9997, "WebSockets", "Luigi Lo lacono", 2015);
+        DVD dvd1 = new DVD(20, 17.7905, "Spiel mir das Lied vom Tod", 1, 1);
+        DVD dvd2 = new DVD(21, 9.996, "Casablanca", 1, 1);
+    }
+
+    public void showBill(){
+
+
+
+    }
+
+}
diff --git a/src/com/company/audioEffekte/AudioEffectPlayer.java b/src/com/company/audioEffekte/AudioEffectPlayer.java
new file mode 100644
index 0000000..27f028e
--- /dev/null
+++ b/src/com/company/audioEffekte/AudioEffectPlayer.java
@@ -0,0 +1,19 @@
+package com.company.audioEffekte;
+
+public class AudioEffectPlayer {
+    private String[] audioEffect;
+
+    public void play(int index){
+
+
+    }
+    public void addEffect(Audioeffekt audioeffekt){
+
+
+    }
+    public void removeEffect(int index){
+
+
+    }
+
+}
diff --git a/src/com/company/audioEffekte/Audioeffekt.java b/src/com/company/audioEffekte/Audioeffekt.java
new file mode 100644
index 0000000..4cba773
--- /dev/null
+++ b/src/com/company/audioEffekte/Audioeffekt.java
@@ -0,0 +1,14 @@
+package com.company.audioEffekte;
+
+abstract class Audioeffekt {
+
+    protected String dateiname;
+
+    public Audioeffekt(String dateiname){
+
+    }
+
+    public void playEffect(){
+
+    }
+}
diff --git a/src/com/company/audioEffekte/MP3Effekt.java b/src/com/company/audioEffekte/MP3Effekt.java
new file mode 100644
index 0000000..90ff5be
--- /dev/null
+++ b/src/com/company/audioEffekte/MP3Effekt.java
@@ -0,0 +1,9 @@
+package com.company.audioEffekte;
+
+public class MP3Effekt extends Audioeffekt {
+
+    public MP3Effekt(String dateiname){
+        this.dateiname = "MP3Effekt";
+
+    }
+}
diff --git a/src/com/company/audioEffekte/OGGEffekt.java b/src/com/company/audioEffekte/OGGEffekt.java
new file mode 100644
index 0000000..b4f97cf
--- /dev/null
+++ b/src/com/company/audioEffekte/OGGEffekt.java
@@ -0,0 +1,9 @@
+package com.company.audioEffekte;
+
+public class OGGEffekt extends Audioeffekt{
+
+    public OGGEffekt(String dateiname){
+        this.dateiname = "OGGEffect";
+
+    }
+}
diff --git a/src/com/company/audioEffekte/WAVEffect.java b/src/com/company/audioEffekte/WAVEffect.java
new file mode 100644
index 0000000..d6c4ed6
--- /dev/null
+++ b/src/com/company/audioEffekte/WAVEffect.java
@@ -0,0 +1,9 @@
+package com.company.audioEffekte;
+
+public class WAVEffect extends Audioeffekt{
+
+    public WAVEffect(String dateiname){
+        this.dateiname = "WAVEffect";
+
+    }
+}
\ No newline at end of file
diff --git a/src/com/company/audioEffekte/main.java b/src/com/company/audioEffekte/main.java
new file mode 100644
index 0000000..f0323b7
--- /dev/null
+++ b/src/com/company/audioEffekte/main.java
@@ -0,0 +1,5 @@
+package com.company.audioEffekte;
+
+public class main {
+
+}
diff --git a/src/com/company/lampe/Bulb.java b/src/com/company/lampe/Bulb.java
new file mode 100644
index 0000000..f51816b
--- /dev/null
+++ b/src/com/company/lampe/Bulb.java
@@ -0,0 +1,12 @@
+package com.company.lampe;
+
+import java.security.PublicKey;
+
+public class Bulb extends Lamp{
+    public Bulb(){
+        this.Watt = 60;
+    }
+    public int power(int hourPerDay){
+        return PowerConsuption(this.Watt);
+    }
+}
diff --git a/src/com/company/lampe/LEDBulb.java b/src/com/company/lampe/LEDBulb.java
new file mode 100644
index 0000000..10b4d5f
--- /dev/null
+++ b/src/com/company/lampe/LEDBulb.java
@@ -0,0 +1,10 @@
+package com.company.lampe;
+
+public class LEDBulb extends Lamp{
+    public LEDBulb(){
+        this.Watt = 9;
+    }
+    public int power(int hourPerDay){
+        return PowerConsuption(this.Watt);
+    }
+}
diff --git a/src/com/company/lampe/Lamp.java b/src/com/company/lampe/Lamp.java
new file mode 100644
index 0000000..563e495
--- /dev/null
+++ b/src/com/company/lampe/Lamp.java
@@ -0,0 +1,14 @@
+package com.company.lampe;
+
+public class Lamp {
+
+    protected int Watt;
+    public int PowerConsuption(int hoursPerDay){
+
+        return (this.Watt*hoursPerDay*365)/1000;
+    }
+    public int getWatt(){
+
+        return this.Watt;
+    }
+}
diff --git a/src/com/company/lampe/main.java b/src/com/company/lampe/main.java
new file mode 100644
index 0000000..72eaa7d
--- /dev/null
+++ b/src/com/company/lampe/main.java
@@ -0,0 +1,11 @@
+package com.company.lampe;
+
+public class main {
+    public static void main(String[] args){
+        LEDBulb led = new LEDBulb();
+        Bulb bulb = new Bulb();
+
+        System.out.println("The LED lamp consumes "+led.power(5)+" kWh per hour");
+        System.out.println("The lamp consumes "+bulb.power(5)+" kWh per hour");
+    }
+}
diff --git a/src/com/company/passwort/Password.java b/src/com/company/passwort/Password.java
index d55b167..9abef79 100644
--- a/src/com/company/passwort/Password.java
+++ b/src/com/company/passwort/Password.java
@@ -5,7 +5,8 @@ public class Password {
     private char[] passwordaktuell;
 
     public Password(char[] passwordAktuell) {
-        this.passwordaktuell = passwordAktuell;
+
+        this.passwordaktuell = java.util.Arrays.copyOf(passwordAktuell, passwordAktuell.length);
     }
 
     boolean isStrong(String password) {
@@ -51,7 +52,7 @@ public class Password {
     }
 
     public boolean isCorrect(char[] passwordEingabe){
-    if(passwordEingabe.equals(passwordaktuell)){
+    if(passwordEingabe.equals(this.passwordaktuell)){
         return true;
     } else{
         return false;
diff --git a/src/com/company/voegel/Ente.java b/src/com/company/voegel/Ente.java
new file mode 100644
index 0000000..959b396
--- /dev/null
+++ b/src/com/company/voegel/Ente.java
@@ -0,0 +1,10 @@
+package com.company.voegel;
+
+public class Ente extends Vogel{
+
+    boolean kannSchwimmen = true;
+    void sagHallo(){
+        System.out.println("Quak");
+    }
+
+}
diff --git a/src/com/company/voegel/Papageil.java b/src/com/company/voegel/Papageil.java
new file mode 100644
index 0000000..716e19b
--- /dev/null
+++ b/src/com/company/voegel/Papageil.java
@@ -0,0 +1,7 @@
+package com.company.voegel;
+
+public class Papageil extends Vogel{
+    void sagHallo(){
+        System.out.println("Hallo");
+    }
+}
diff --git a/src/com/company/voegel/RentnerPapageil.java b/src/com/company/voegel/RentnerPapageil.java
new file mode 100644
index 0000000..c9d0bef
--- /dev/null
+++ b/src/com/company/voegel/RentnerPapageil.java
@@ -0,0 +1,14 @@
+package com.company.voegel;
+
+public class RentnerPapageil extends Papageil{
+    void sagHallo(){
+        for (int i = 0; i < 3; i++){
+            System.out.println("Hallo ");
+        }
+    }
+
+    String getName(){
+        System.out.println(name);
+        return name;
+    }
+}
diff --git a/src/com/company/voegel/Vogel.java b/src/com/company/voegel/Vogel.java
new file mode 100644
index 0000000..9a8d547
--- /dev/null
+++ b/src/com/company/voegel/Vogel.java
@@ -0,0 +1,14 @@
+package com.company.voegel;
+
+public class Vogel {
+
+    String name;
+    protected boolean kannFliegen = true;
+
+    void sagHallo(){
+    }
+
+    String getName(){
+        return name;
+    }
+}
diff --git a/src/com/company/voegel/voegelMain.java b/src/com/company/voegel/voegelMain.java
new file mode 100644
index 0000000..0829d61
--- /dev/null
+++ b/src/com/company/voegel/voegelMain.java
@@ -0,0 +1,21 @@
+package com.company.voegel;
+
+public class voegelMain {
+
+    public static void main(String[] args){
+
+        Ente e = new Ente();
+        RentnerPapageil RP = new RentnerPapageil();
+
+        System.out.println(e.kannFliegen);
+        RP.sagHallo();
+
+        Vogel vogel1, vogel2, vogel3;
+        vogel1 = new Ente();
+        vogel1.sagHallo();
+        vogel2 = new Papageil();
+        vogel2.sagHallo();
+        vogel3 = new RentnerPapageil();
+        vogel3.sagHallo();
+    }
+}