Initialize WS-06-intro-to-javafx with empty exercise template

src/main/java/workshop/Controller.java

@@ -0,0 +1,37 @@
+package workshop;
+
+import javafx.fxml.FXML;
+import javafx.scene.control.Label;
+import javafx.scene.control.Button;
+
+public class Controller {
+    @FXML private Label titleLabel;
+    @FXML private Button themeToggle;
+
+    private boolean isDark = true;
+
+    @FXML
+    private void buyBasic() {
+        // TODO: Call showAlert() with a message indicating the user entered the payment gateway
+    }
+
+    @FXML
+    private void buyPro() {
+        // TODO: Call showAlert() with a message indicating the user entered the payment gateway
+    }
+
+    @FXML
+    private void buyEnterprise() {
+        // TODO: Call showAlert() with a message indicating the user entered the payment gateway
+    }
+
+    @FXML
+    private void toggleTheme() {
+        // TODO: Toggle the isDark flag. If dark, switch to style.css and set button text to "Switch to Light Mode"
+        // TODO: If light, switch to light.css and set button text to "Switch to Dark Mode"
+    }
+
+    private void showAlert(String message) {
+        // TODO: Create a new Alert of type INFORMATION with the given message and display it
+    }
+}