CategoryAxis.getCategories() has the following syntax.
public final ObservableList<java.lang.String> getCategories()
In the following code shows how to use CategoryAxis.getCategories() method.
import javafx.application.Application; import javafx.collections.FXCollections; import javafx.collections.ObservableList; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.chart.CategoryAxis; import javafx.scene.layout.VBox; import javafx.stage.Stage; /*from ww w .j a v a 2s .c o m*/ public class Main extends Application { @Override public void start(final Stage stage) { stage.setWidth(500); stage.setHeight(500); Scene scene = new Scene(new Group()); VBox root = new VBox(); CategoryAxis lineXAxis = new CategoryAxis(getData()); ObservableList<String> list = lineXAxis.getCategories(); root.getChildren().addAll(lineXAxis); scene.setRoot(root); stage.setScene(scene); stage.show(); } private ObservableList<String> getData() { ObservableList<String> answer = FXCollections.observableArrayList(); answer.addAll("Sales","Products"); return answer; } public static void main(String[] args) { launch(args); } }