boxes

Code/Steiner/Wrapper-theorie/.vscode/settings.json

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

Code/Steiner/Wrapper-theorie/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).

Code/Steiner/Wrapper-theorie/src/NumberConverter.java

@@ -0,0 +1,41 @@
+import java.util.Scanner;
+
+public class NumberConverter {
+    public static void main(String[] args) {
+        // User input
+        Scanner scanner = new Scanner(System.in);
+        System.out.print("Please enter an integer: ");
+        String input = scanner.nextLine();
+
+        // Convert input to an Integer object
+        Integer number = Integer.valueOf(input);
+
+        // A1) Display the entered number
+        System.out.println("A1) Entered number: " + number.toString());
+
+        // A2) Convert to binary and display
+        String binaryString = Integer.toBinaryString(number);
+        System.out.println("A2) Number in binary: " + binaryString);
+
+        // A3) Convert to hexadecimal and display
+        String hexString = Integer.toHexString(number);
+        System.out.println("A3) Number in hexadecimal: " + hexString);
+
+        // A4) Display the maximum value for Integer
+        System.out.println("A4) Maximum value of Integer: " + Integer.MAX_VALUE);
+
+        // A5) Display the minimum value for Integer
+        System.out.println("A5) Minimum value of Integer: " + Integer.MIN_VALUE);
+
+        // B1) Convert the binary string back to decimal and display
+        Integer fromBinary = Integer.valueOf(binaryString, 2);
+        System.out.println("B1) Converted back from binary: " + fromBinary.toString());
+
+        // B2) Convert the hexadecimal string back to decimal and display
+        Integer fromHex = Integer.valueOf(hexString, 16);
+        System.out.println("B2) Converted back from hexadecimal: " + fromHex.toString());
+
+        // Close the scanner
+        scanner.close();
+    }
+}

Code/ost/_05_layouts/src/main/java/com/example/App.java

@@ -1,23 +1,64 @@
+//#region imports
 package com.example;
 
 import javafx.application.Application;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
 import javafx.scene.Scene;
 import javafx.scene.control.Button;
 import javafx.scene.layout.AnchorPane;
+import javafx.scene.layout.HBox;
+import javafx.scene.layout.Priority;
+import javafx.scene.layout.StackPane;
+import javafx.scene.layout.VBox;
+import javafx.scene.paint.Color;
+import javafx.scene.shape.Circle;
+import javafx.scene.shape.Rectangle;
+import javafx.scene.text.Text;
 import javafx.stage.Stage;
 
-/**
+//#region launcher
- * JavaFX App with AnchorPane layout
- */
 public class App extends Application {
 
+    private Stage primaryStage;
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+
     @Override
     public void start(Stage stage) {
-        // Create AnchorPane
+        this.primaryStage = stage;
+        showStackPane(); // Change this line to launch a different scene
+    }
+
+    // #region HBox Scene
+    private void showHBoxScene() {
+        HBox hbox = new HBox();
+        hbox.setPadding(new Insets(10, 20, 20, 20));
+        hbox.setSpacing(15);
+
+        // Create two buttons
+        Button leftButton = new Button("Left");
+        Button rightButton = new Button("Right");
+
+        // Add buttons to the HBox
+        hbox.getChildren().addAll(leftButton, rightButton);
+        hbox.setAlignment(Pos.CENTER);
+
+        Scene scene = new Scene(hbox, 250, 150);
+        primaryStage.setTitle("Hauptfenster - HBox Scene");
+        primaryStage.setScene(scene);
+        primaryStage.show();
+    }
+    // #endregion
+
+    // #region AnchorPane Scene
+    private void showAnchorPaneScene() {
         AnchorPane anchorPane = new AnchorPane();
 
-        // Create Controll button
+        // Create Control button
-        Button mainButton = new Button("Button");
+        Button mainButton = new Button("Main Button");
         AnchorPane.setTopAnchor(mainButton, 50.0);
         AnchorPane.setLeftAnchor(mainButton, 50.0);
         AnchorPane.setRightAnchor(mainButton, 10.0);
@@ -31,14 +72,59 @@ public class App extends Application {
         // Add buttons to the pane
         anchorPane.getChildren().addAll(mainButton, button1);
 
-        // Set up the Scene with AnchorPane
         Scene scene = new Scene(anchorPane, 640, 480);
-        stage.setTitle("Hauptfenster with AnchorPane");
+        primaryStage.setTitle("Hauptfenster - AnchorPane Scene");
-        stage.setScene(scene);
+        primaryStage.setScene(scene);
-        stage.show();
+        primaryStage.show();
     }
+    // #endregion
 
-    public static void main(String[] args) {
+    // #region VBox Scene
-        launch();
+    private void showVBoxScene() {
+        VBox vbox = new VBox();
+        vbox.setSpacing(8);
+
+        // Create the buttons
+        Button growButton = new Button("Lass mich wachsen!");
+        Button relaxButton = new Button("Lass mich in ruhe!");
+
+        // Set grow priority for the growButton
+        VBox.setVgrow(growButton, Priority.ALWAYS);
+        growButton.setMaxHeight(500);
+
+        // Add buttons to the VBox
+        vbox.getChildren().addAll(growButton, relaxButton);
+
+        Scene scene = new Scene(vbox, 200, 400);
+        primaryStage.setTitle("VBox Scene");
+        primaryStage.setScene(scene);
+        primaryStage.show();
     }
+    // #endregion
+
+    // #region StackPane Scene
+    private void showStackPane() {
+        StackPane stackPane = new StackPane();
+
+        // Create a circle
+        Circle circle = new Circle(100);
+        circle.setFill(Color.DARKSLATEBLUE);
+        circle.setStroke(Color.BLACK);
+
+        // Create a rectangle
+        Rectangle rectangle = new Rectangle(50, 50);
+
+        // Create a text
+        Text text = new Text("Hello World");
+        text.setFill(Color.CRIMSON);
+
+        // Add the shapes and text to the StackPane
+        stackPane.getChildren().addAll(circle, rectangle, text);
+
+        Scene scene = new Scene(stackPane, 300, 300);
+        primaryStage.setTitle("StackPane Scene");
+        primaryStage.setScene(scene);
+        primaryStage.show();
+    }
+    // #endregion
 }

Code/ost/_05_layouts/src/main/java/com/example/SystemInfo.java

@@ -1,13 +0,0 @@
-package com.example;
-
-public class SystemInfo {
-
-    public static String javaVersion() {
-        return System.getProperty("java.version");
-    }
-
-    public static String javafxVersion() {
-        return System.getProperty("javafx.version");
-    }
-
-}