diff --git a/Code/Steiner/battleShip/src/App.class b/Code/Steiner/battleShip/src/App.class
index a7fc5b4..8ef7845 100644
Binary files a/Code/Steiner/battleShip/src/App.class and b/Code/Steiner/battleShip/src/App.class differ
diff --git a/Code/Steiner/oopPruefung1/.vscode/settings.json b/Code/Steiner/oopPruefung1/.vscode/settings.json
new file mode 100644
index 0000000..e112a70
--- /dev/null
+++ b/Code/Steiner/oopPruefung1/.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/oopPruefung1/README.md b/Code/Steiner/oopPruefung1/README.md
new file mode 100644
index 0000000..7c03a53
--- /dev/null
+++ b/Code/Steiner/oopPruefung1/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/oopPruefung1/bin/App.class b/Code/Steiner/oopPruefung1/bin/App.class
new file mode 100644
index 0000000..5f8386c
Binary files /dev/null and b/Code/Steiner/oopPruefung1/bin/App.class differ
diff --git a/Code/Steiner/oopPruefung1/bin/Time.class b/Code/Steiner/oopPruefung1/bin/Time.class
new file mode 100644
index 0000000..0047eb7
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diff --git a/Code/Steiner/oopPruefung1/src/App.class b/Code/Steiner/oopPruefung1/src/App.class
new file mode 100644
index 0000000..4cc0957
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diff --git a/Code/Steiner/oopPruefung1/src/App.java b/Code/Steiner/oopPruefung1/src/App.java
new file mode 100644
index 0000000..2a6785d
--- /dev/null
+++ b/Code/Steiner/oopPruefung1/src/App.java
@@ -0,0 +1,16 @@
+// Luca Burger
+// Aufgabe 12
+
+public class App {
+    public static void main(String[] args) throws Exception {
+        Time myTime1 = new Time(5, 42);
+        Time myTime2 = new Time(3, 27);
+        Time myTime3 = new Time(5, 20);
+        Time myTime4 = new Time(3, 10);
+        Time myTime5 = new Time(3, 20);
+
+        System.out.println(Time.subtract(myTime3, myTime4));
+        System.out.println(Time.convertToMinute(myTime1));
+
+    }
+}
diff --git a/Code/Steiner/oopPruefung1/src/Time.class b/Code/Steiner/oopPruefung1/src/Time.class
new file mode 100644
index 0000000..442f882
Binary files /dev/null and b/Code/Steiner/oopPruefung1/src/Time.class differ
diff --git a/Code/Steiner/oopPruefung1/src/Time.java b/Code/Steiner/oopPruefung1/src/Time.java
new file mode 100644
index 0000000..68994f4
--- /dev/null
+++ b/Code/Steiner/oopPruefung1/src/Time.java
@@ -0,0 +1,37 @@
+// Luca Burger
+// Aufgabe 12
+
+public class Time {
+    int hour;
+    int minute;
+
+    Time(int hour, int minute) {
+        this.hour = hour;
+        this.minute = minute;
+    }
+
+    void add(Time time, Time time2) {
+        time.hour += time2.hour;
+        time.minute += time2.minute;
+    }
+
+    static int subtract(Time time, Time time2) {
+        int minute1 = convertToMinute(time);
+        int minute2 = convertToMinute(time2);
+        return minute1 - minute2;
+
+    }
+
+    static int convertToMinute(Time time) {
+        int add = time.hour * 60;
+        return time.minute += add;
+    }
+
+    static String print(Time myTime) {
+        String text = "";
+        text += myTime.hour;
+        text += ":";
+        text += myTime.minute;
+        return text;
+    }
+}
diff --git a/Code/Steiner/oopUebung5/.vscode/settings.json b/Code/Steiner/oopUebung5/.vscode/settings.json
new file mode 100644
index 0000000..e112a70
--- /dev/null
+++ b/Code/Steiner/oopUebung5/.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/oopUebung5/README.md b/Code/Steiner/oopUebung5/README.md
new file mode 100644
index 0000000..7c03a53
--- /dev/null
+++ b/Code/Steiner/oopUebung5/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/oopUebung5/bin/App.class b/Code/Steiner/oopUebung5/bin/App.class
new file mode 100644
index 0000000..1081e8c
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diff --git a/Code/Steiner/oopUebung5/bin/Position.class b/Code/Steiner/oopUebung5/bin/Position.class
new file mode 100644
index 0000000..0e75ff2
Binary files /dev/null and b/Code/Steiner/oopUebung5/bin/Position.class differ
diff --git a/Code/Steiner/oopUebung5/src/App.class b/Code/Steiner/oopUebung5/src/App.class
new file mode 100644
index 0000000..e5cf113
Binary files /dev/null and b/Code/Steiner/oopUebung5/src/App.class differ
diff --git a/Code/Steiner/oopUebung5/src/App.java b/Code/Steiner/oopUebung5/src/App.java
new file mode 100644
index 0000000..bfae0f3
--- /dev/null
+++ b/Code/Steiner/oopUebung5/src/App.java
@@ -0,0 +1,63 @@
+import java.util.*;
+
+public class App {
+    public static void main(String[] args) throws Exception {
+        Position player = new Position();
+        player.x = 0;
+        player.y = 0;
+
+        while (true) {
+            player.printPosition(player);
+            int direction = whereToMove(player);
+            int distance = howFar(player);
+            switch (direction) {
+                case 1:
+                    player.goUp(distance);
+                    break;
+                case 2:
+                    player.goRight(distance);
+                    break;
+                case 3:
+                    player.goDown(distance);
+                    break;
+                case 4:
+                    player.goLeft(distance);
+                    break;
+
+                default:
+                    System.out.println("Was not a valid direction || distance");
+                    break;
+            }
+        }
+    }
+
+    public static int whereToMove(Position player) {
+        Scanner scan = new Scanner(System.in);
+        int input;
+        while (true) {
+            System.out.println("Where do you want to move (1 up, 2 right, 3 down, 4 left)");
+            try {
+                input = scan.nextInt();
+                break;
+            } catch (Exception e) {
+                System.out.println("Input was not an int");
+            }
+        }
+        return input;
+    }
+
+    public static int howFar(Position player) {
+        Scanner scan = new Scanner(System.in);
+        int input;
+        while (true) {
+            System.out.println("How far?");
+            try {
+                input = scan.nextInt();
+                break;
+            } catch (Exception e) {
+                System.out.println("Input was not an int");
+            }
+        }
+        return input;
+    }
+}
diff --git a/Code/Steiner/oopUebung5/src/Position.class b/Code/Steiner/oopUebung5/src/Position.class
new file mode 100644
index 0000000..5a9045b
Binary files /dev/null and b/Code/Steiner/oopUebung5/src/Position.class differ
diff --git a/Code/Steiner/oopUebung5/src/Position.java b/Code/Steiner/oopUebung5/src/Position.java
new file mode 100644
index 0000000..8e792ed
--- /dev/null
+++ b/Code/Steiner/oopUebung5/src/Position.java
@@ -0,0 +1,24 @@
+public class Position {
+    int x;
+    int y;
+
+    void goLeft(int howFar) {
+        x = x - howFar;
+    }
+
+    void goRight(int howFar) {
+        x = x + howFar;
+    }
+
+    void goUp(int howFar) {
+        y = y - howFar;
+    }
+
+    void goDown(int howFar) {
+        y = y + howFar;
+    }
+
+    void printPosition(Position player) {
+        System.out.println("Player Position: (" + player.x + "/" + player.y + ")");
+    }
+}
diff --git a/Code/Steiner/oopUebung6/.vscode/settings.json b/Code/Steiner/oopUebung6/.vscode/settings.json
new file mode 100644
index 0000000..e112a70
--- /dev/null
+++ b/Code/Steiner/oopUebung6/.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/oopUebung6/README.md b/Code/Steiner/oopUebung6/README.md
new file mode 100644
index 0000000..7c03a53
--- /dev/null
+++ b/Code/Steiner/oopUebung6/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/oopUebung6/bin/Rectangle.class b/Code/Steiner/oopUebung6/bin/Rectangle.class
new file mode 100644
index 0000000..838cbdb
Binary files /dev/null and b/Code/Steiner/oopUebung6/bin/Rectangle.class differ
diff --git a/Code/Steiner/oopUebung6/bin/RectangleTest.class b/Code/Steiner/oopUebung6/bin/RectangleTest.class
new file mode 100644
index 0000000..71fd2ab
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diff --git a/Code/Steiner/oopUebung6/src/Rectangle.class b/Code/Steiner/oopUebung6/src/Rectangle.class
new file mode 100644
index 0000000..5ca753c
Binary files /dev/null and b/Code/Steiner/oopUebung6/src/Rectangle.class differ
diff --git a/Code/Steiner/oopUebung6/src/Rectangle.java b/Code/Steiner/oopUebung6/src/Rectangle.java
new file mode 100644
index 0000000..e509120
--- /dev/null
+++ b/Code/Steiner/oopUebung6/src/Rectangle.java
@@ -0,0 +1,80 @@
+public class Rectangle {
+    // Private attributes for length and width
+    private double length;
+    private double width;
+
+    // Constructor with two parameters to initialize the length and width
+    public Rectangle(double length, double width) {
+        this.length = length;
+        this.width = width;
+    }
+
+    // Setter methods
+    public void setLength(double length) {
+        this.length = length;
+    }
+
+    public void setWidth(double width) {
+        this.width = width;
+    }
+
+    public void setSides(double length, double width) {
+        this.length = length;
+        this.width = width;
+    }
+
+    // Getter methods
+    public double getLength() {
+        return length;
+    }
+
+    public double getWidth() {
+        return width;
+    }
+
+    // Method to get the longer side
+    public double getLongerSide() {
+        return Math.max(length, width);
+    }
+
+    // Method to get the shorter side
+    public double getShorterSide() {
+        return Math.min(length, width);
+    }
+
+    // Method to calculate the diagonal of the rectangle
+    public double getDiagonal() {
+        return Math.sqrt(length * length + width * width);
+    }
+
+    // Method to calculate the area of the rectangle
+    public double getArea() {
+        return length * width;
+    }
+
+    // Method to calculate the perimeter of the rectangle
+    public double getPerimeter() {
+        return 2 * (length + width);
+    }
+
+    // Methods to adjust length and width
+    public void increaseLength(double l) {
+        length += l;
+    }
+
+    public void increaseWidth(double w) {
+        width += w;
+    }
+
+    public void decreaseLength(double l) {
+        length -= l;
+        if (length < 0)
+            length = 0; // Ensure length doesn't become negative
+    }
+
+    public void decreaseWidth(double w) {
+        width -= w;
+        if (width < 0)
+            width = 0; // Ensure width doesn't become negative
+    }
+}
diff --git a/Code/Steiner/oopUebung6/src/RectangleTest.class b/Code/Steiner/oopUebung6/src/RectangleTest.class
new file mode 100644
index 0000000..ac61761
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diff --git a/Code/Steiner/oopUebung6/src/RectangleTest.java b/Code/Steiner/oopUebung6/src/RectangleTest.java
new file mode 100644
index 0000000..41d9186
--- /dev/null
+++ b/Code/Steiner/oopUebung6/src/RectangleTest.java
@@ -0,0 +1,67 @@
+import java.util.Scanner;
+
+public class RectangleTest {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        // Get user input for length and width
+        System.out.print("Enter the length of the rectangle: ");
+        double length = scanner.nextDouble();
+
+        System.out.print("Enter the width of the rectangle: ");
+        double width = scanner.nextDouble();
+
+        // Create a Rectangle object
+        Rectangle rectangle = new Rectangle(length, width);
+
+        System.out.println("What do you want to do? (1: increase, 2: decrease)");
+        int input = scanner.nextInt();
+
+        if (input == 1) {
+            // Increase the dimension
+            System.out.println("Which dimension do you want to increase? (1: width, 2: length)");
+            input = scanner.nextInt();
+            if (input == 1) {
+                // Increase width
+                System.out.print("Increase width by: ");
+                double increaseBy = scanner.nextDouble();
+                rectangle.increaseWidth(increaseBy);
+            } else if (input == 2) {
+                // Increase length
+                System.out.print("Increase length by: ");
+                double increaseBy = scanner.nextDouble();
+                rectangle.increaseLength(increaseBy);
+            } else {
+                System.out.println("Invalid input for dimension choice.");
+            }
+        } else if (input == 2) {
+            // Decrease the dimension
+            System.out.println("Which dimension do you want to decrease? (1: width, 2: length)");
+            input = scanner.nextInt();
+            if (input == 1) {
+                // Decrease width
+                System.out.print("Decrease width by: ");
+                double decreaseBy = scanner.nextDouble();
+                rectangle.decreaseWidth(decreaseBy);
+            } else if (input == 2) {
+                // Decrease length
+                System.out.print("Decrease length by: ");
+                double decreaseBy = scanner.nextDouble();
+                rectangle.decreaseLength(decreaseBy);
+            } else {
+                System.out.println("Invalid input for dimension choice.");
+            }
+        } else {
+            System.out.println("Invalid input for action choice.");
+        }
+
+        // Display the results
+        System.out.println("Longer side: " + rectangle.getLongerSide());
+        System.out.println("Shorter side: " + rectangle.getShorterSide());
+        System.out.println("Diagonal: " + rectangle.getDiagonal());
+        System.out.println("Area: " + rectangle.getArea());
+        System.out.println("Perimeter: " + rectangle.getPerimeter());
+
+        scanner.close();
+    }
+}
diff --git a/Code/Steiner/oopUebung7/.vscode/settings.json b/Code/Steiner/oopUebung7/.vscode/settings.json
new file mode 100644
index 0000000..e112a70
--- /dev/null
+++ b/Code/Steiner/oopUebung7/.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/oopUebung7/README.md b/Code/Steiner/oopUebung7/README.md
new file mode 100644
index 0000000..7c03a53
--- /dev/null
+++ b/Code/Steiner/oopUebung7/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/oopUebung7/bin/App.class b/Code/Steiner/oopUebung7/bin/App.class
new file mode 100644
index 0000000..c627b68
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diff --git a/Code/Steiner/oopUebung7/bin/Person.class b/Code/Steiner/oopUebung7/bin/Person.class
new file mode 100644
index 0000000..59306e8
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diff --git a/Code/Steiner/oopUebung7/src/App.class b/Code/Steiner/oopUebung7/src/App.class
new file mode 100644
index 0000000..d6b1b39
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diff --git a/Code/Steiner/oopUebung7/src/App.java b/Code/Steiner/oopUebung7/src/App.java
new file mode 100644
index 0000000..d4c9d4d
--- /dev/null
+++ b/Code/Steiner/oopUebung7/src/App.java
@@ -0,0 +1,9 @@
+public class App {
+    public static void main(String[] args) throws Exception {
+        Person myPerson1 = new Person("Hans", 200);
+        myPerson1.validTransaction(500);
+        System.out.println(myPerson1.getBalance());
+        myPerson1.setName("Luca");
+        System.out.println(myPerson1.getName());
+    }
+}
\ No newline at end of file
diff --git a/Code/Steiner/oopUebung7/src/Person.class b/Code/Steiner/oopUebung7/src/Person.class
new file mode 100644
index 0000000..6defc12
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diff --git a/Code/Steiner/oopUebung7/src/Person.java b/Code/Steiner/oopUebung7/src/Person.java
new file mode 100644
index 0000000..4f4ab14
--- /dev/null
+++ b/Code/Steiner/oopUebung7/src/Person.java
@@ -0,0 +1,29 @@
+public class Person {
+    private String name;
+    private double balance;
+
+    Person(String person, double money) {
+        name = person;
+        balance = money;
+    }
+
+    boolean validTransaction(double money) {
+        if (balance + money >= 0) {
+            balance += money;
+            return true;
+        } else
+            return false;
+    }
+
+    void setName(String name) {
+        this.name = name;
+    }
+
+    String getName() {
+        return name;
+    }
+
+    double getBalance() {
+        return balance;
+    }
+}
\ No newline at end of file
diff --git a/Code/Steiner/oopUebung8/.vscode/settings.json b/Code/Steiner/oopUebung8/.vscode/settings.json
new file mode 100644
index 0000000..e112a70
--- /dev/null
+++ b/Code/Steiner/oopUebung8/.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/oopUebung8/README.md b/Code/Steiner/oopUebung8/README.md
new file mode 100644
index 0000000..7c03a53
--- /dev/null
+++ b/Code/Steiner/oopUebung8/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/oopUebung8/bin/App.class b/Code/Steiner/oopUebung8/bin/App.class
new file mode 100644
index 0000000..fe4e1b6
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diff --git a/Code/Steiner/oopUebung8/bin/Gehege.class b/Code/Steiner/oopUebung8/bin/Gehege.class
new file mode 100644
index 0000000..69a532f
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diff --git a/Code/Steiner/oopUebung8/bin/Tier.class b/Code/Steiner/oopUebung8/bin/Tier.class
new file mode 100644
index 0000000..3995d76
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new file mode 100644
index 0000000..f07de5f
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diff --git a/Code/Steiner/oopUebung8/src/App.java b/Code/Steiner/oopUebung8/src/App.java
new file mode 100644
index 0000000..a149d9b
--- /dev/null
+++ b/Code/Steiner/oopUebung8/src/App.java
@@ -0,0 +1,29 @@
+public class App {
+    public static void main(String[] args) {
+        // Einige Tiere erstellen
+        Tier loewe = new Tier("Löwe", "Leo");
+        Tier elefant = new Tier("Elefant", "Dumbo");
+        Tier pinguin = new Tier("Pinguin", "Pingu");
+
+        // Gehege mit Kapazität von 5 Tieren erstellen
+        Gehege gehege1 = new Gehege(1, 5);
+
+        // Tiere zum Gehege hinzufügen
+        gehege1.hinzufuegenTier(loewe);
+        gehege1.hinzufuegenTier(elefant);
+        gehege1.hinzufuegenTier(pinguin);
+
+        // Informationen ausgeben
+        System.out.println("Gehege Nummer: " + gehege1.getNummer());
+        Tier[] tiereImGehege = gehege1.getTiere();
+        for (Tier tier : tiereImGehege) {
+            System.out.println("Tier: " + tier.getArt() + " - Name: " + tier.getName());
+        }
+
+        // Name eines Tieres ändern
+        loewe.setName("Simba");
+
+        // Überprüfen, ob der Name des Tieres aktualisiert wurde
+        System.out.println("Aktualisierter Name des Löwen: " + loewe.getName());
+    }
+}
diff --git a/Code/Steiner/oopUebung8/src/Gehege.class b/Code/Steiner/oopUebung8/src/Gehege.class
new file mode 100644
index 0000000..6185e5e
Binary files /dev/null and b/Code/Steiner/oopUebung8/src/Gehege.class differ
diff --git a/Code/Steiner/oopUebung8/src/Gehege.java b/Code/Steiner/oopUebung8/src/Gehege.java
new file mode 100644
index 0000000..95ab7b6
--- /dev/null
+++ b/Code/Steiner/oopUebung8/src/Gehege.java
@@ -0,0 +1,54 @@
+public class Gehege {
+    private int nummer;
+    private Tier[] tierListe;
+    private int aktuelleAnzahlTiere;
+    private int kapazitaet;
+
+    // Konstruktor, der die Nummer und die Kapazität des Geheges annimmt
+    Gehege(int nummer, int kapazitaet) {
+        this.nummer = nummer;
+        this.kapazitaet = kapazitaet;
+        this.tierListe = new Tier[kapazitaet];
+        this.aktuelleAnzahlTiere = 0;
+    }
+
+    // Methode zum Hinzufügen eines Tieres
+    public void hinzufuegenTier(Tier tier) {
+        if (aktuelleAnzahlTiere < kapazitaet) {
+            tierListe[aktuelleAnzahlTiere] = tier;
+            aktuelleAnzahlTiere++;
+            System.out.println("Tier hinzugefügt: " + tier.getName());
+        } else {
+            System.out.println("Das Gehege ist voll. Tier konnte nicht hinzugefügt werden.");
+        }
+    }
+
+    // Methode zum Entfernen eines Tieres
+    public void entfernenTier(Tier tier) {
+        for (int i = 0; i < aktuelleAnzahlTiere; i++) {
+            if (tierListe[i].equals(tier)) {
+                // Tier entfernen und Array neu ordnen
+                for (int j = i; j < aktuelleAnzahlTiere - 1; j++) {
+                    tierListe[j] = tierListe[j + 1];
+                }
+                tierListe[aktuelleAnzahlTiere - 1] = null;
+                aktuelleAnzahlTiere--;
+                System.out.println("Tier entfernt: " + tier.getName());
+                return;
+            }
+        }
+        System.out.println("Tier nicht gefunden: " + tier.getName());
+    }
+
+    // Methode zum Zurückgeben der aktuellen Liste der Tiere
+    public Tier[] getTiere() {
+        Tier[] tiereImGehege = new Tier[aktuelleAnzahlTiere];
+        System.arraycopy(tierListe, 0, tiereImGehege, 0, aktuelleAnzahlTiere);
+        return tiereImGehege;
+    }
+
+    // Methode zum Zurückgeben der Nummer des Geheges
+    public int getNummer() {
+        return nummer;
+    }
+}
diff --git a/Code/Steiner/oopUebung8/src/Tier.class b/Code/Steiner/oopUebung8/src/Tier.class
new file mode 100644
index 0000000..355e21a
Binary files /dev/null and b/Code/Steiner/oopUebung8/src/Tier.class differ
diff --git a/Code/Steiner/oopUebung8/src/Tier.java b/Code/Steiner/oopUebung8/src/Tier.java
new file mode 100644
index 0000000..cd1fc99
--- /dev/null
+++ b/Code/Steiner/oopUebung8/src/Tier.java
@@ -0,0 +1,25 @@
+public class Tier {
+    private String art;
+    private String name;
+
+    // Konstruktor zur Setzung von Art und Name
+    public Tier(String art, String name) {
+        this.art = art;
+        this.name = name;
+    }
+
+    // Getter für Art
+    public String getArt() {
+        return art;
+    }
+
+    // Getter für Name
+    public String getName() {
+        return name;
+    }
+
+    // Setter für Name
+    public void setName(String name) {
+        this.name = name;
+    }
+}
diff --git a/Code/Steiner/oop_theorie_2/.vscode/settings.json b/Code/Steiner/oop_theorie_2/.vscode/settings.json
new file mode 100644
index 0000000..e112a70
--- /dev/null
+++ b/Code/Steiner/oop_theorie_2/.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/oop_theorie_2/README.md b/Code/Steiner/oop_theorie_2/README.md
new file mode 100644
index 0000000..7c03a53
--- /dev/null
+++ b/Code/Steiner/oop_theorie_2/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/oop_theorie_2/bin/App.class b/Code/Steiner/oop_theorie_2/bin/App.class
new file mode 100644
index 0000000..2d46d91
Binary files /dev/null and b/Code/Steiner/oop_theorie_2/bin/App.class differ
diff --git a/Code/Steiner/oop_theorie_2/bin/Person.class b/Code/Steiner/oop_theorie_2/bin/Person.class
new file mode 100644
index 0000000..010d006
Binary files /dev/null and b/Code/Steiner/oop_theorie_2/bin/Person.class differ
diff --git a/Code/Steiner/oop_theorie_2/src/App.class b/Code/Steiner/oop_theorie_2/src/App.class
new file mode 100644
index 0000000..281644f
Binary files /dev/null and b/Code/Steiner/oop_theorie_2/src/App.class differ
diff --git a/Code/Steiner/oop_theorie_2/src/App.java b/Code/Steiner/oop_theorie_2/src/App.java
new file mode 100644
index 0000000..2241763
--- /dev/null
+++ b/Code/Steiner/oop_theorie_2/src/App.java
@@ -0,0 +1,25 @@
+public class App {
+    public static void main(String[] args) throws Exception {
+        // Create an array of Person objects
+        Person[] persons = new Person[5];
+
+        // Initialize the Person objects
+        persons[0] = new Person("Hans", 2012);
+        persons[1] = new Person("Peter", 2011);
+        persons[2] = new Person("Jochen", 2013);
+        persons[3] = new Person("Christian", 2050);
+        persons[4] = new Person("Tobias", 1932);
+
+        // Print each person
+        for (Person person : persons) {
+            person.printPerson();
+        }
+
+        int sumAge = 0;
+        for (Person person : persons) {
+            sumAge += person.getAge();
+        }
+
+        System.out.println("The sum of the age of all people is: " + sumAge);
+    }
+}
diff --git a/Code/Steiner/oop_theorie_2/src/Person.class b/Code/Steiner/oop_theorie_2/src/Person.class
new file mode 100644
index 0000000..c850055
Binary files /dev/null and b/Code/Steiner/oop_theorie_2/src/Person.class differ
diff --git a/Code/Steiner/oop_theorie_2/src/Person.java b/Code/Steiner/oop_theorie_2/src/Person.java
new file mode 100644
index 0000000..0c1facf
--- /dev/null
+++ b/Code/Steiner/oop_theorie_2/src/Person.java
@@ -0,0 +1,36 @@
+import java.time.LocalDate;
+
+class Person {
+    private String name;
+    private int age;
+
+    Person(String name, int yearOfBirth) {
+        this.name = name;
+        LocalDate currentDate = LocalDate.now();
+        int year = currentDate.getYear();
+        this.age = year - yearOfBirth;
+        if (this.age < 0) {
+            this.age = 0;
+        }
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
+    public void setAge(int age) {
+        this.age = age;
+    }
+
+    public void printPerson() {
+        System.out.println(name + " " + age);
+    }
+}
diff --git a/Code/Steiner/oppUebung4/bin/App.class b/Code/Steiner/oppUebung4/bin/App.class
index 9f2b697..528f790 100644
Binary files a/Code/Steiner/oppUebung4/bin/App.class and b/Code/Steiner/oppUebung4/bin/App.class differ
diff --git a/Code/Steiner/oppUebung4/bin/Article.class b/Code/Steiner/oppUebung4/bin/Article.class
new file mode 100644
index 0000000..41549fa
Binary files /dev/null and b/Code/Steiner/oppUebung4/bin/Article.class differ
diff --git a/Code/Steiner/oppUebung4/bin/Storage.class b/Code/Steiner/oppUebung4/bin/Storage.class
index 73e7c72..102353f 100644
Binary files a/Code/Steiner/oppUebung4/bin/Storage.class and b/Code/Steiner/oppUebung4/bin/Storage.class differ
diff --git a/Code/Steiner/oppUebung4/bin/Unit.class b/Code/Steiner/oppUebung4/bin/Unit.class
deleted file mode 100644
index d519a7d..0000000
Binary files a/Code/Steiner/oppUebung4/bin/Unit.class and /dev/null differ
diff --git a/Code/Steiner/oppUebung4/src/App.java b/Code/Steiner/oppUebung4/src/App.java
index 8c2a09e..9f1da0c 100644
--- a/Code/Steiner/oppUebung4/src/App.java
+++ b/Code/Steiner/oppUebung4/src/App.java
@@ -1,5 +1,7 @@
+import java.util.*;
+
 public class App {
-    public static void main(String[] args) throws Exception {
+    public static void main(String[] args) {
         Object[][] article = {
                 { 1, "Banana", 5, "Stk" },
                 { 23, "Flour", 2, "KG" },
@@ -13,39 +15,81 @@ public class App {
                 { 56, "Bread", 2, "Loaves" },
                 { 90, "Cheese", 1, "KG" },
                 { 32, "Tomato", 8, "Stk" },
-                { 11, "Salt", 1, "KG" }
-
+                { 11, "Salt", 1, "KG" },
+                { 13, "Cocaine", 12, "mg" }
         };
 
         // Create an array to hold Storage objects
-        Storage[] myStorage = new Storage[article.length];
+        Storage[] myStorage = new Storage[1000];
+        Storage[] myArticles = new Storage[article.length];
 
-        // Create and store Storage objects in the array
+        // Initialize 1000 possible storage places
+        for (int i = 0; i < myStorage.length; i++) {
+            myStorage[i] = initializStorage(); // Initialize storage with default values
+        }
+
+        // Create and store Storage objects in the myArticles array
         for (int i = 0; i < article.length; i++) {
-            myStorage[i] = createStorage(article[i]);
+            myArticles[i] = createStorage(article[i]);
+        }
+
+        // Fill some of the myStorage array with the contents of myArticles
+        // For example, place the first few articles into the first few storage slots
+        for (int i = 0; i < myArticles.length; i++) {
+            if (i < myStorage.length) {
+                myStorage[i] = myArticles[i];
+            }
         }
 
         // Print out the details of each Item
         for (Storage storage : myStorage) {
             printItems(storage);
         }
+        String search = "Banana";
+        Storage foundItems = lookUp(myStorage, search);
+        if (foundItems != null) {
+            System.out.println("-------------------");
+            System.out.println("You searched for " + search);
+            printItems(foundItems);
+        } else {
+            System.out.println("No " + search + " found");
+        }
+    }
 
+    private static Storage initializStorage() {
+        Storage storage = new Storage();
+        storage.storageId = 0;
+        storage.article.name = "";
+        storage.quantaty = 0;
+        storage.article.unit = "";
+        return storage;
     }
 
     private static Storage createStorage(Object[] article) {
         Storage storage = new Storage();
         storage.storageId = (int) article[0];
-        storage.name = (String) article[1];
-        storage.unit.quantaty = (int) article[2];
-        storage.unit.unit = (String) article[3];
+        storage.article.name = (String) article[1];
+        storage.quantaty = (int) article[2];
+        storage.article.unit = (String) article[3];
         return storage;
     }
 
     private static void printItems(Storage storage) {
-        System.out.println("Item on shelf: " + storage.storageId);
-        System.out.println("Item name: " + storage.name);
-        System.out.println("Item(s) on stock: " + storage.unit.quantaty);
-        System.out.println("Measured unit: " + storage.unit.unit);
-        System.out.println("-----------------------------------------");
+        if (storage.storageId != 0) { // Only print if there's an actual item
+            System.out.println("Item on shelf: " + storage.storageId);
+            System.out.println("Item name: " + storage.article.name);
+            System.out.println("Item(s) on stock: " + storage.quantaty);
+            System.out.println("Measured unit: " + storage.article.unit);
+            System.out.println("-----------------------------------------");
+        }
+    }
+
+    private static Storage lookUp(Storage[] myStorage, String name) {
+        for (Storage storage : myStorage) {
+            if (storage.article.name == name) {
+                return storage;
+            }
+        }
+        return null;
     }
 }
diff --git a/Code/Steiner/oppUebung4/src/Article.java b/Code/Steiner/oppUebung4/src/Article.java
new file mode 100644
index 0000000..609bb4e
--- /dev/null
+++ b/Code/Steiner/oppUebung4/src/Article.java
@@ -0,0 +1,4 @@
+class Article {
+    String unit;
+    String name;
+}
diff --git a/Code/Steiner/oppUebung4/src/Storage.java b/Code/Steiner/oppUebung4/src/Storage.java
index baf67fa..3a58af5 100644
--- a/Code/Steiner/oppUebung4/src/Storage.java
+++ b/Code/Steiner/oppUebung4/src/Storage.java
@@ -1,5 +1,6 @@
-public class Storage {
+
+class Storage {
     int storageId;
-    String name;
-    Unit unit = new Unit();
+    Article article = new Article();
+    int quantaty;
 }
diff --git a/Code/Steiner/oppUebung4/src/Unit.java b/Code/Steiner/oppUebung4/src/Unit.java
deleted file mode 100644
index 21f91e8..0000000
--- a/Code/Steiner/oppUebung4/src/Unit.java
+++ /dev/null
@@ -1,4 +0,0 @@
-public class Unit {
-    int quantaty;
-    String unit;
-}
diff --git a/Code/Steiner/test27.8.24/.vscode/settings.json b/Code/Steiner/test27.8.24/.vscode/settings.json
new file mode 100644
index 0000000..e112a70
--- /dev/null
+++ b/Code/Steiner/test27.8.24/.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/test27.8.24/README.md b/Code/Steiner/test27.8.24/README.md
new file mode 100644
index 0000000..7c03a53
--- /dev/null
+++ b/Code/Steiner/test27.8.24/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/test27.8.24/bin/App.class b/Code/Steiner/test27.8.24/bin/App.class
new file mode 100644
index 0000000..e637540
Binary files /dev/null and b/Code/Steiner/test27.8.24/bin/App.class differ
diff --git a/Code/Steiner/test27.8.24/src/App.class b/Code/Steiner/test27.8.24/src/App.class
new file mode 100644
index 0000000..ea59367
Binary files /dev/null and b/Code/Steiner/test27.8.24/src/App.class differ
diff --git a/Code/Steiner/test27.8.24/src/App.java b/Code/Steiner/test27.8.24/src/App.java
new file mode 100644
index 0000000..fb50bd1
--- /dev/null
+++ b/Code/Steiner/test27.8.24/src/App.java
@@ -0,0 +1,23 @@
+import java.util.Arrays;
+
+public class App {
+    public static void main(String[] args) throws Exception {
+        int[] strength = new int[5];
+
+        strength[0] = 5;
+        strength[1] = 12;
+        strength[2] = 18;
+        strength[3] = 2;
+        strength[4] = 1;
+
+        for (int i = 0; i < strength.length; i++) {
+            System.out.println(strength[i]);
+        }
+        System.out.println("-------------------------------------");
+        Arrays.sort(strength);
+
+        for (int i = 0; i < strength.length; i++) {
+            System.out.println(strength[i]);
+        }
+    }
+}
diff --git a/Code/ost/_00_hello_world/src/main/java/com/example/App.java b/Code/ost/_00_hello_world/src/main/java/com/example/App.java
index aea1f3a..d2930cc 100644
--- a/Code/ost/_00_hello_world/src/main/java/com/example/App.java
+++ b/Code/ost/_00_hello_world/src/main/java/com/example/App.java
@@ -12,12 +12,13 @@ import javafx.stage.Stage;
 public class App extends Application {
 
     @Override
+    
     public void start(Stage stage) {
         var javaVersion = SystemInfo.javaVersion();
         var javafxVersion = SystemInfo.javafxVersion();
 
-        var label = new Label("Hello World");
-        var scene = new Scene(new StackPane(label), 100, 100);
+        var label = new Label("Hello, World");
+        var scene = new Scene(new StackPane(label), 640, 480);
         stage.setScene(scene);
         stage.show();
     }
diff --git a/Code/ost/_00_hello_world/target/classes/com/example/App.class b/Code/ost/_00_hello_world/target/classes/com/example/App.class
index afbdcb5..247092f 100644
Binary files a/Code/ost/_00_hello_world/target/classes/com/example/App.class and b/Code/ost/_00_hello_world/target/classes/com/example/App.class differ
diff --git a/Code/ost/_00_hello_world/target/classes/com/example/SystemInfo.class b/Code/ost/_00_hello_world/target/classes/com/example/SystemInfo.class
index ae53960..487f8e1 100644
Binary files a/Code/ost/_00_hello_world/target/classes/com/example/SystemInfo.class and b/Code/ost/_00_hello_world/target/classes/com/example/SystemInfo.class differ
diff --git a/Code/ost/_00_hello_world/target/classes/module-info.class b/Code/ost/_00_hello_world/target/classes/module-info.class
index fb805fd..5e9b472 100644
Binary files a/Code/ost/_00_hello_world/target/classes/module-info.class and b/Code/ost/_00_hello_world/target/classes/module-info.class differ
diff --git a/Code/ost/_00_hello_world/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst b/Code/ost/_00_hello_world/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
index e69de29..c4d055a 100644
--- a/Code/ost/_00_hello_world/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
+++ b/Code/ost/_00_hello_world/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst
@@ -0,0 +1,3 @@
+module-info.class
+com\example\App.class
+com\example\SystemInfo.class