Smaller task & refactoring co2

Code/Steiner/arrayList/.vscode/settings.json

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+{
+    "java.project.sourcePaths": ["src"],
+    "java.project.outputPath": "bin",
+    "java.project.referencedLibraries": [
+        "lib/**/*.jar"
+    ]
+}

Code/Steiner/arrayList/README.md

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+## 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).

Code/Steiner/arrayList/src/App.java

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+import java.util.ArrayList;
+import java.util.Collections;
+
+public class App {
+    public static void main(String[] args) {
+        int[] array = { 0, 1, 2, 3, 4, 5, 4, -3, -2, 0 };
+        ArrayList<Integer> list = new ArrayList<>();
+
+        initializeListFromArray(array, list);
+        printList("ArrayList vor Modifikationen:", list);
+
+        addValues(list, 10, -5);
+        removeElementAt(list, 1);
+        printList("ArrayList nach Modifikationen:", list);
+
+        sortList(list);
+        printList("ArrayList nach Sortierung:", list);
+
+        shuffleList(list);
+        printList("ArrayList nach dem Mischen:", list);
+
+        printMinMaxValues(list);
+    }
+
+    // Initialisiert die ArrayList mit Werten aus dem Array
+    private static void initializeListFromArray(int[] array, ArrayList<Integer> list) {
+        for (int num : array) {
+            list.add(num);
+        }
+    }
+
+    // Fügt der ArrayList zwei Werte hinzu
+    private static void addValues(ArrayList<Integer> list, int value1, int value2) {
+        list.add(value1);
+        list.add(value2);
+    }
+
+    // Entfernt das Element an einer bestimmten Position
+    private static void removeElementAt(ArrayList<Integer> list, int index) {
+        if (index >= 0 && index < list.size()) {
+            list.remove(index);
+        }
+    }
+
+    // Gibt den Inhalt der ArrayList aus
+    private static void printList(String message, ArrayList<Integer> list) {
+        System.out.println(message);
+        for (int num : list) {
+            System.out.print(num + " ");
+        }
+        System.out.println();
+    }
+
+    // Sortiert die ArrayList
+    private static void sortList(ArrayList<Integer> list) {
+        Collections.sort(list);
+    }
+
+    // Mischt die ArrayList
+    private static void shuffleList(ArrayList<Integer> list) {
+        Collections.shuffle(list);
+    }
+
+    // Gibt den maximalen und minimalen Wert der ArrayList aus
+    private static void printMinMaxValues(ArrayList<Integer> list) {
+        int max = Collections.max(list);
+        int min = Collections.min(list);
+        System.out.println("Maximaler Wert: " + max);
+        System.out.println("Minimaler Wert: " + min);
+    }
+}