diff --git a/Code/Steiner/abstractAufgabe/.vscode/settings.json b/Code/Steiner/abstractAufgabe/.vscode/settings.json
new file mode 100644
index 0000000..e112a70
--- /dev/null
+++ b/Code/Steiner/abstractAufgabe/.vscode/settings.json
@@ -0,0 +1,7 @@
+{
+    "java.project.sourcePaths": ["src"],
+    "java.project.outputPath": "bin",
+    "java.project.referencedLibraries": [
+        "lib/**/*.jar"
+    ]
+}
diff --git a/Code/Steiner/abstractAufgabe/README.md b/Code/Steiner/abstractAufgabe/README.md
new file mode 100644
index 0000000..7c03a53
--- /dev/null
+++ b/Code/Steiner/abstractAufgabe/README.md
@@ -0,0 +1,18 @@
+## Getting Started
+
+Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
+
+## Folder Structure
+
+The workspace contains two folders by default, where:
+
+- `src`: the folder to maintain sources
+- `lib`: the folder to maintain dependencies
+
+Meanwhile, the compiled output files will be generated in the `bin` folder by default.
+
+> If you want to customize the folder structure, open `.vscode/settings.json` and update the related settings there.
+
+## Dependency Management
+
+The `JAVA PROJECTS` view allows you to manage your dependencies. More details can be found [here](https://github.com/microsoft/vscode-java-dependency#manage-dependencies).
diff --git a/Code/Steiner/abstractAufgabe/bin/App.class b/Code/Steiner/abstractAufgabe/bin/App.class
new file mode 100644
index 0000000..b3142ed
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diff --git a/Code/Steiner/abstractAufgabe/bin/Auto.class b/Code/Steiner/abstractAufgabe/bin/Auto.class
new file mode 100644
index 0000000..061d845
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diff --git a/Code/Steiner/abstractAufgabe/bin/Boot.class b/Code/Steiner/abstractAufgabe/bin/Boot.class
new file mode 100644
index 0000000..ac5a8cf
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diff --git a/Code/Steiner/abstractAufgabe/bin/Fahrzeug.class b/Code/Steiner/abstractAufgabe/bin/Fahrzeug.class
new file mode 100644
index 0000000..a1ca1fe
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diff --git a/Code/Steiner/abstractAufgabe/src/App.class b/Code/Steiner/abstractAufgabe/src/App.class
new file mode 100644
index 0000000..a51d41a
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diff --git a/Code/Steiner/abstractAufgabe/src/App.java b/Code/Steiner/abstractAufgabe/src/App.java
new file mode 100644
index 0000000..b9da557
--- /dev/null
+++ b/Code/Steiner/abstractAufgabe/src/App.java
@@ -0,0 +1,10 @@
+// Hauptprogramm App
+public class App {
+    public static void main(String[] args) {
+        Auto auto = new Auto("Ferrari");
+        Boot boot = new Boot("Titanic");
+
+        auto.bewegen();
+        boot.bewegen();
+    }
+}
diff --git a/Code/Steiner/abstractAufgabe/src/Auto.class b/Code/Steiner/abstractAufgabe/src/Auto.class
new file mode 100644
index 0000000..ef28a17
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diff --git a/Code/Steiner/abstractAufgabe/src/Auto.java b/Code/Steiner/abstractAufgabe/src/Auto.java
new file mode 100644
index 0000000..357cfe7
--- /dev/null
+++ b/Code/Steiner/abstractAufgabe/src/Auto.java
@@ -0,0 +1,12 @@
+
+// Klasse Auto
+public class Auto extends Fahrzeug {
+    public Auto(String name) {
+        super(name);
+    }
+
+    @Override
+    public void bewegen() {
+        System.out.println("Das Auto " + getName() + " fährt auf der Strasse.");
+    }
+}
\ No newline at end of file
diff --git a/Code/Steiner/abstractAufgabe/src/Boot.class b/Code/Steiner/abstractAufgabe/src/Boot.class
new file mode 100644
index 0000000..a9e8850
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diff --git a/Code/Steiner/abstractAufgabe/src/Boot.java b/Code/Steiner/abstractAufgabe/src/Boot.java
new file mode 100644
index 0000000..f1fa05a
--- /dev/null
+++ b/Code/Steiner/abstractAufgabe/src/Boot.java
@@ -0,0 +1,11 @@
+// Klasse Boot
+public class Boot extends Fahrzeug {
+    public Boot(String name) {
+        super(name);
+    }
+
+    @Override
+    public void bewegen() {
+        System.out.println("Das Boot " + getName() + " fährt auf dem Wasser.");
+    }
+}
\ No newline at end of file
diff --git a/Code/Steiner/abstractAufgabe/src/Fahrzeug.class b/Code/Steiner/abstractAufgabe/src/Fahrzeug.class
new file mode 100644
index 0000000..6e19196
Binary files /dev/null and b/Code/Steiner/abstractAufgabe/src/Fahrzeug.class differ
diff --git a/Code/Steiner/abstractAufgabe/src/Fahrzeug.java b/Code/Steiner/abstractAufgabe/src/Fahrzeug.java
new file mode 100644
index 0000000..a76be5c
--- /dev/null
+++ b/Code/Steiner/abstractAufgabe/src/Fahrzeug.java
@@ -0,0 +1,14 @@
+// Basisklasse Fahrzeug
+public abstract class Fahrzeug {
+    private String name;
+
+    public Fahrzeug(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public abstract void bewegen();
+}
diff --git a/Code/Steiner/geometryAbstarct/.vscode/settings.json b/Code/Steiner/geometryAbstarct/.vscode/settings.json
new file mode 100644
index 0000000..e112a70
--- /dev/null
+++ b/Code/Steiner/geometryAbstarct/.vscode/settings.json
@@ -0,0 +1,7 @@
+{
+    "java.project.sourcePaths": ["src"],
+    "java.project.outputPath": "bin",
+    "java.project.referencedLibraries": [
+        "lib/**/*.jar"
+    ]
+}
diff --git a/Code/Steiner/geometryAbstarct/README.md b/Code/Steiner/geometryAbstarct/README.md
new file mode 100644
index 0000000..7c03a53
--- /dev/null
+++ b/Code/Steiner/geometryAbstarct/README.md
@@ -0,0 +1,18 @@
+## Getting Started
+
+Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
+
+## Folder Structure
+
+The workspace contains two folders by default, where:
+
+- `src`: the folder to maintain sources
+- `lib`: the folder to maintain dependencies
+
+Meanwhile, the compiled output files will be generated in the `bin` folder by default.
+
+> If you want to customize the folder structure, open `.vscode/settings.json` and update the related settings there.
+
+## Dependency Management
+
+The `JAVA PROJECTS` view allows you to manage your dependencies. More details can be found [here](https://github.com/microsoft/vscode-java-dependency#manage-dependencies).
diff --git a/Code/Steiner/geometryAbstarct/bin/App.class b/Code/Steiner/geometryAbstarct/bin/App.class
new file mode 100644
index 0000000..bae0935
Binary files /dev/null and b/Code/Steiner/geometryAbstarct/bin/App.class differ
diff --git a/Code/Steiner/geometryAbstarct/bin/Form.class b/Code/Steiner/geometryAbstarct/bin/Form.class
new file mode 100644
index 0000000..1a8b3f1
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diff --git a/Code/Steiner/geometryAbstarct/bin/Kreis.class b/Code/Steiner/geometryAbstarct/bin/Kreis.class
new file mode 100644
index 0000000..eb0ca00
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diff --git a/Code/Steiner/geometryAbstarct/bin/Position.class b/Code/Steiner/geometryAbstarct/bin/Position.class
new file mode 100644
index 0000000..e248c1a
Binary files /dev/null and b/Code/Steiner/geometryAbstarct/bin/Position.class differ
diff --git a/Code/Steiner/geometryAbstarct/bin/Rechteck.class b/Code/Steiner/geometryAbstarct/bin/Rechteck.class
new file mode 100644
index 0000000..bee1e95
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diff --git a/Code/Steiner/geometryAbstarct/src/App.java b/Code/Steiner/geometryAbstarct/src/App.java
new file mode 100644
index 0000000..07ff73d
--- /dev/null
+++ b/Code/Steiner/geometryAbstarct/src/App.java
@@ -0,0 +1,24 @@
+public class App {
+    public static void main(String[] args) throws Exception {
+        Kreis myKreis = new Kreis("blau", 10, 5, 1);
+        Rechteck myRechteck = new Rechteck("gelb", 0, -12, 2, 5);
+
+        System.out.println("Werte vor der modifizierung");
+        zeichne(myKreis, myRechteck);
+
+        System.out.println("modifikationen");
+        myKreis.position.bewegen(12, -11);
+        myRechteck.position.bewegen(33, 12);
+        myKreis.aendereRadius(3);
+        myRechteck.aendereGroesse(23, 12);
+
+        System.out.println("Werte nach der Veränderung");
+        zeichne(myKreis, myRechteck);
+
+    }
+
+    private static void zeichne(Kreis myKreis, Rechteck myRechteck) {
+        myKreis.zeichnen();
+        myRechteck.zeichnen();
+    }
+}
diff --git a/Code/Steiner/geometryAbstarct/src/Form.java b/Code/Steiner/geometryAbstarct/src/Form.java
new file mode 100644
index 0000000..6aeb824
--- /dev/null
+++ b/Code/Steiner/geometryAbstarct/src/Form.java
@@ -0,0 +1,17 @@
+
+public abstract class Form {
+    protected String farbe;
+    protected Position position;
+
+    public Form(String farbe, int x, int y) {
+        this.farbe = farbe;
+        Position tempPosition = new Position(x, y);
+        this.position = tempPosition;
+    }
+
+    public Position getPosition() {
+        return position;
+    }
+
+    protected abstract void zeichnen();
+}
diff --git a/Code/Steiner/geometryAbstarct/src/Kreis.java b/Code/Steiner/geometryAbstarct/src/Kreis.java
new file mode 100644
index 0000000..6572aad
--- /dev/null
+++ b/Code/Steiner/geometryAbstarct/src/Kreis.java
@@ -0,0 +1,18 @@
+public class Kreis extends Form {
+    private int radius;
+
+    public Kreis(String farbe, int x, int y, int radius) {
+        super(farbe, x, y);
+        this.radius = radius;
+    }
+
+    public void aendereRadius(int myInt) {
+        this.radius += myInt;
+    }
+
+    @Override
+    public void zeichnen() {
+        System.out.println("Zeichne Kreis an der Position (" + getPosition().getX() + ", " + getPosition().getY()
+                + ") mit dem radius " + radius);
+    }
+}
diff --git a/Code/Steiner/geometryAbstarct/src/Position.java b/Code/Steiner/geometryAbstarct/src/Position.java
new file mode 100644
index 0000000..2ed9c0c
--- /dev/null
+++ b/Code/Steiner/geometryAbstarct/src/Position.java
@@ -0,0 +1,30 @@
+public class Position {
+    int x;
+    int y;
+
+    Position(int x, int y) {
+        this.x = x;
+        this.y = y;
+    }
+
+    public int getX() {
+        return x;
+    }
+
+    public void setX(int x) {
+        this.x = x;
+    }
+
+    public int getY() {
+        return y;
+    }
+
+    public void setY(int y) {
+        this.y = y;
+    }
+
+    public void bewegen(int x, int y) {
+        setX(x);
+        setY(y);
+    }
+}
diff --git a/Code/Steiner/geometryAbstarct/src/Rechteck.java b/Code/Steiner/geometryAbstarct/src/Rechteck.java
new file mode 100644
index 0000000..22d7a6b
--- /dev/null
+++ b/Code/Steiner/geometryAbstarct/src/Rechteck.java
@@ -0,0 +1,21 @@
+public class Rechteck extends Form {
+    private int hoehe;
+    private int breite;
+
+    public Rechteck(String farbe, int x, int y, int hoehe, int breite) {
+        super(farbe, x, y);
+        this.hoehe = hoehe;
+        this.breite = breite;
+    }
+
+    public void aendereGroesse(int hoehe, int breite) {
+        this.hoehe = hoehe;
+        this.breite = breite;
+    }
+
+    @Override
+    public void zeichnen() {
+        System.out.println("Zeichne ein Rechteck an der Position (" + getPosition().getX() + ", " + getPosition().getY()
+                + ") mit der Breite " + breite + " und der Höhe " + hoehe);
+    }
+}
diff --git a/Code/Steiner/giroKonto/.vscode/settings.json b/Code/Steiner/giroKonto/.vscode/settings.json
new file mode 100644
index 0000000..e112a70
--- /dev/null
+++ b/Code/Steiner/giroKonto/.vscode/settings.json
@@ -0,0 +1,7 @@
+{
+    "java.project.sourcePaths": ["src"],
+    "java.project.outputPath": "bin",
+    "java.project.referencedLibraries": [
+        "lib/**/*.jar"
+    ]
+}
diff --git a/Code/Steiner/giroKonto/README.md b/Code/Steiner/giroKonto/README.md
new file mode 100644
index 0000000..7c03a53
--- /dev/null
+++ b/Code/Steiner/giroKonto/README.md
@@ -0,0 +1,18 @@
+## Getting Started
+
+Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
+
+## Folder Structure
+
+The workspace contains two folders by default, where:
+
+- `src`: the folder to maintain sources
+- `lib`: the folder to maintain dependencies
+
+Meanwhile, the compiled output files will be generated in the `bin` folder by default.
+
+> If you want to customize the folder structure, open `.vscode/settings.json` and update the related settings there.
+
+## Dependency Management
+
+The `JAVA PROJECTS` view allows you to manage your dependencies. More details can be found [here](https://github.com/microsoft/vscode-java-dependency#manage-dependencies).
diff --git a/Code/Steiner/giroKonto/bin/App.class b/Code/Steiner/giroKonto/bin/App.class
new file mode 100644
index 0000000..b468243
Binary files /dev/null and b/Code/Steiner/giroKonto/bin/App.class differ
diff --git a/Code/Steiner/giroKonto/bin/Konto.class b/Code/Steiner/giroKonto/bin/Konto.class
new file mode 100644
index 0000000..4ecc740
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diff --git a/Code/Steiner/giroKonto/src/App.class b/Code/Steiner/giroKonto/src/App.class
new file mode 100644
index 0000000..f98e016
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diff --git a/Code/Steiner/giroKonto/src/App.java b/Code/Steiner/giroKonto/src/App.java
new file mode 100644
index 0000000..c964498
--- /dev/null
+++ b/Code/Steiner/giroKonto/src/App.java
@@ -0,0 +1,16 @@
+public class App {
+    public static void main(String[] args) throws Exception {
+        // Aufgabe 1
+        System.out.println("Aufgabe 1: \n");
+
+        Konto konto1 = new Konto("0000000001", 1000);
+        System.out.println(konto1.toString());
+        konto1.einzahlen(500);
+        konto1.abheben(750);
+        System.out.println("\nDaten nach transaktionen: ");
+        System.out.println(konto1.toString());
+
+        // Aufgabe 2
+        System.out.println("Aufgabe 2");
+    }
+}
diff --git a/Code/Steiner/giroKonto/src/Konto.class b/Code/Steiner/giroKonto/src/Konto.class
new file mode 100644
index 0000000..ce2be72
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diff --git a/Code/Steiner/giroKonto/src/Konto.java b/Code/Steiner/giroKonto/src/Konto.java
new file mode 100644
index 0000000..bf9ac24
--- /dev/null
+++ b/Code/Steiner/giroKonto/src/Konto.java
@@ -0,0 +1,40 @@
+public class Konto {
+    private String kontonummer;
+    private double kontostand;
+
+    public Konto(String kontonummer, int kontostand) {
+        if (kontonummer.length() == 10) {
+            this.kontonummer = kontonummer;
+            this.kontostand = kontostand;
+        } else
+            System.out.println("Es ist fehler beim erstellen des Konto aufgetreten");
+    }
+
+    public String getKontonummer() {
+        return kontonummer;
+    }
+
+    public double getKontostand() {
+        return kontostand;
+    }
+
+    public void abheben(double betrag) {
+        if (kontostand >= 0) {
+            this.kontostand -= betrag;
+        } else
+            System.out.println("Fehlermeldung #1225");
+    }
+
+    public void einzahlen(double betrag) {
+        if (kontostand >= 0) {
+            this.kontostand += betrag;
+        } else
+            System.out.println("Fehlermeldung #5221");
+    }
+
+    @Override
+    public String toString() {
+        return "Konto [Kontonummer=" + kontonummer + ", Kontostand=" + kontostand + "CHF]";
+    }
+
+}
diff --git a/Code/Steiner/simpleCalender/.vscode/settings.json b/Code/Steiner/simpleCalender/.vscode/settings.json
new file mode 100644
index 0000000..e112a70
--- /dev/null
+++ b/Code/Steiner/simpleCalender/.vscode/settings.json
@@ -0,0 +1,7 @@
+{
+    "java.project.sourcePaths": ["src"],
+    "java.project.outputPath": "bin",
+    "java.project.referencedLibraries": [
+        "lib/**/*.jar"
+    ]
+}
diff --git a/Code/Steiner/simpleCalender/README.md b/Code/Steiner/simpleCalender/README.md
new file mode 100644
index 0000000..7c03a53
--- /dev/null
+++ b/Code/Steiner/simpleCalender/README.md
@@ -0,0 +1,18 @@
+## Getting Started
+
+Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
+
+## Folder Structure
+
+The workspace contains two folders by default, where:
+
+- `src`: the folder to maintain sources
+- `lib`: the folder to maintain dependencies
+
+Meanwhile, the compiled output files will be generated in the `bin` folder by default.
+
+> If you want to customize the folder structure, open `.vscode/settings.json` and update the related settings there.
+
+## Dependency Management
+
+The `JAVA PROJECTS` view allows you to manage your dependencies. More details can be found [here](https://github.com/microsoft/vscode-java-dependency#manage-dependencies).
diff --git a/Code/Steiner/simpleCalender/bin/App.class b/Code/Steiner/simpleCalender/bin/App.class
new file mode 100644
index 0000000..f17a1ef
Binary files /dev/null and b/Code/Steiner/simpleCalender/bin/App.class differ
diff --git a/Code/Steiner/simpleCalender/bin/SimpleCalendar.class b/Code/Steiner/simpleCalender/bin/SimpleCalendar.class
new file mode 100644
index 0000000..21678f5
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diff --git a/Code/Steiner/simpleCalender/src/App.class b/Code/Steiner/simpleCalender/src/App.class
new file mode 100644
index 0000000..a7e07ef
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diff --git a/Code/Steiner/simpleCalender/src/App.java b/Code/Steiner/simpleCalender/src/App.java
new file mode 100644
index 0000000..320ed65
--- /dev/null
+++ b/Code/Steiner/simpleCalender/src/App.java
@@ -0,0 +1,14 @@
+public class App {
+    public static void main(String[] args) throws Exception {
+
+        SimpleCalendar simpleCalendar = new SimpleCalendar();
+        // Aktuelles Datum und Uhrzeit formatieren und ausgeben
+        System.out.println("Aktuelles Datum und Uhrzeit:");
+        System.out.println(simpleCalendar.getFormattedDate());
+
+        // Zeit manipulieren
+        simpleCalendar.add(SimpleCalendar.DAY_OF_MONTH, 5);
+        System.out.println("Datum in 5 Tagen:");
+        System.out.println(simpleCalendar.getFormattedDate());
+    }
+}
diff --git a/Code/Steiner/simpleCalender/src/SimpleCalendar.class b/Code/Steiner/simpleCalender/src/SimpleCalendar.class
new file mode 100644
index 0000000..695b2d0
Binary files /dev/null and b/Code/Steiner/simpleCalender/src/SimpleCalendar.class differ
diff --git a/Code/Steiner/simpleCalender/src/SimpleCalendar.java b/Code/Steiner/simpleCalender/src/SimpleCalendar.java
new file mode 100644
index 0000000..ef855ae
--- /dev/null
+++ b/Code/Steiner/simpleCalender/src/SimpleCalendar.java
@@ -0,0 +1,15 @@
+import java.util.GregorianCalendar;
+
+public class SimpleCalendar extends GregorianCalendar {
+
+    public String getFormattedDate() {
+        int year = get(GregorianCalendar.YEAR);
+        int month = get(GregorianCalendar.MONTH) + 1; // Monate sind 0-basiert
+        int day = get(GregorianCalendar.DAY_OF_MONTH);
+        int hour = get(GregorianCalendar.HOUR_OF_DAY);
+        int minute = get(GregorianCalendar.MINUTE);
+        int second = get(GregorianCalendar.SECOND);
+
+        return String.format("%02d.%02d.%04d %02d:%02d:%02d", day, month, year, hour, minute, second);
+    }
+}