first commit

Ugesedler/Ugeseddel-12 26-11-2025/src/RandomWalk.java

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+import javafx.application.Application;
+import javafx.collections.ObservableList;
+import javafx.event.ActionEvent;
+import javafx.event.EventHandler;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.CheckBox;
+import javafx.scene.control.Label;
+import javafx.scene.layout.BorderPane;
+import javafx.scene.layout.StackPane;
+import javafx.scene.layout.VBox;
+import javafx.stage.Stage;
+import java.util.Random;
+
+public class RandomWalk extends Application {
+    private Button button = new Button();
+    private int counter = 0;
+    private Label label = new Label("" + this.counter);
+    private final Random random = new Random();
+    @Override
+    public void start(Stage primaryStage) throws Exception {
+        primaryStage.setTitle("Random Walk");
+        this.button.setText((random.nextBoolean() ? "Up" : "Down"));
+        BorderPane borderPane = new BorderPane();
+        borderPane.setPadding(new Insets(20, 20,20,20));
+        borderPane.setCenter(this.button);
+        BorderPane.setAlignment(this.button, Pos.CENTER);
+        borderPane.setBottom(label);
+        BorderPane.setAlignment(label, Pos.BOTTOM_CENTER);
+        Scene scene = new Scene(borderPane, 300, 250);
+        primaryStage.setScene(scene);
+        this.button.setOnAction(e -> {
+                counter += (button.getText().equals("Up") ? 1 : -1);
+                button.setText((random.nextBoolean() ? "Up" : "Down"));
+                label.setText("" + counter);
+            });
+        primaryStage.show();
+    }
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+}