changed the file structure

Code/Steiner/oopUebung1/.vscode/settings.json

@@ -0,0 +1,7 @@
+{
+    "java.project.sourcePaths": ["src"],
+    "java.project.outputPath": "bin",
+    "java.project.referencedLibraries": [
+        "lib/**/*.jar"
+    ]
+}

Code/Steiner/oopUebung1/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/oopUebung1/src/App.java

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+public class App {
+    public static void main(String[] args) throws Exception {
+
+        Circle myCircleOne = createCircle(11, 222, 3);
+        Circle myCircleTwo = createCircle(11, 222, 3);
+        Circle myCircleThree = createCircle(11, 222, 3);
+
+        printCircle(myCircleOne, "Circle one");
+        printCircle(myCircleTwo, "Circle two");
+        printCircle(myCircleThree, "Circle three");
+    }
+
+    private static void printCircle(Circle circle, String name) {
+        System.out.println(name + ": ");
+        System.out.println("Coordinates: " + "(" + circle.point.x + "/" + circle.point.y + ")");
+        System.out.println("Radius: " + circle.radius);
+        System.out.println("");
+
+    }
+
+    private static Circle createCircle(int x, int y, int radius) {
+        Circle circle = new Circle();
+
+        circle.point.x = x;
+        circle.point.y = y;
+        circle.radius = radius;
+
+        return circle;
+    }
+}

Code/Steiner/oopUebung1/src/Circle.java

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+public class Circle {
+    Point point = new Point();
+    int radius;
+}

Code/Steiner/oopUebung1/src/Point.java

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+public class Point {
+    int x;
+    int y;
+}