diff --git a/.gitignore b/.gitignore
index 45b3c29..72ea2eb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
-OnlineShop/.settings/*
\ No newline at end of file
+OnlineShop/.settings/*
+*.bkp
+*.dtmp
\ No newline at end of file
diff --git a/OnlineShop/src/backend/Bestellung.java b/OnlineShop/src/backend/Bestellung.java
index 7e2a91f..5ee8b89 100644
--- a/OnlineShop/src/backend/Bestellung.java
+++ b/OnlineShop/src/backend/Bestellung.java
@@ -4,6 +4,18 @@ public class Bestellung {
 	public int id;
 	public Warenkorb bestellungen;
 	public Boolean storniert;
+
+	public Bestellung(int id, Warenkorb bestellungen) {
+		this.id = id;
+		this.bestellungen = bestellungen;
+		this.storniert = false;
+	};
+	
+	public Bestellung(int id, Warenkorb bestellungen,  Boolean storniert) {
+		this.id = id;
+		this.bestellungen = bestellungen;
+		this.storniert = storniert;
+	};
 	
 	public void StorniereBestellung(Warenkorb storniert) {
 		
diff --git a/OnlineShop/src/backend/Kunde.java b/OnlineShop/src/backend/Kunde.java
index 39a8e58..cce4cd1 100644
--- a/OnlineShop/src/backend/Kunde.java
+++ b/OnlineShop/src/backend/Kunde.java
@@ -3,4 +3,9 @@ package backend;
 public class Kunde {
 	public String name;
 	public String Adresse;
+
+	public Kunde(String name, String Adresse) {
+		this.name = name;
+		this.Adresse = Adresse;
+	};
 }
diff --git a/OnlineShop/src/backend/OnlineShop.java b/OnlineShop/src/backend/OnlineShop.java
index db11bd2..e3b8dfb 100644
--- a/OnlineShop/src/backend/OnlineShop.java
+++ b/OnlineShop/src/backend/OnlineShop.java
@@ -8,9 +8,9 @@ public class OnlineShop {
 	public Warenkorb aktuellerWarenkorb;
 
 	public OnlineShop() {
-		lager = new ArrayList<Produkt>();
-		bestellungen = new ArrayList<Bestellung>();
-		aktuellerWarenkorb = new Warenkorb();
+		this.lager = new ArrayList<Produkt>();
+		this.bestellungen = new ArrayList<Bestellung>();
+		this.aktuellerWarenkorb = new Warenkorb();
 	};
 	
 	public void AddProdukt(Produkt neu){
diff --git a/OnlineShop/src/backend/Produkt.java b/OnlineShop/src/backend/Produkt.java
index 3a5ad80..76a5884 100644
--- a/OnlineShop/src/backend/Produkt.java
+++ b/OnlineShop/src/backend/Produkt.java
@@ -9,6 +9,15 @@ public class Produkt {
 	public int netto;
 	public int mwStSatz;
 	public int lagerbestand;
+
+	public Produkt(int id, String name, int transportGewicht, int netto, int mwStSatz, int lagerbestand) {
+		this.id = id;
+		this.name = name;
+		this.transportGewicht = transportGewicht;
+		this.netto = netto;
+		this.mwStSatz = mwStSatz;
+		this.lagerbestand = lagerbestand;
+	};
 	
 	public void UpdateProdukt(Produkt update) {
 	};
diff --git a/OnlineShop/src/backend/Warenkorb.java b/OnlineShop/src/backend/Warenkorb.java
index feea496..25eb6b6 100644
--- a/OnlineShop/src/backend/Warenkorb.java
+++ b/OnlineShop/src/backend/Warenkorb.java
@@ -6,6 +6,12 @@ public class Warenkorb {
 	public ArrayList<Produkt> inhalt;
 	public ArrayList<Integer> anzahl;
 	public Kunde kunde;
+
+	public Warenkorb(Kunde kunde) {
+		this.inhalt = new ArrayList<Produkt>();
+		this.anzahl = new ArrayList<Integer>();
+		this.kunde = kunde;
+	};
 	
 	public int NettoPreis(){
 		return 0;};
diff --git a/README.md b/README.md
index 2444d52..8bd8e44 100644
--- a/README.md
+++ b/README.md
@@ -8,5 +8,9 @@ https://app.diagrams.net/#Uhttps%3A%2F%2Fgitty.informatik.hs-mannheim.de%2F30292
 Or download and open it with drawio.
 
 Time Chart:
+
 1:40 for UML and understanding of the Exercise
+
 0:40 for Creating Java project with UML defined Classes.
+
+0:06 creating constructors
\ No newline at end of file