java - 如何在javaFX中从ComobBox获取文本？

Question

如果我要从文本字段获取文本，那么会像这样:

String username = txt_username.getText();

但是如何从ComboBox获取文本？

我尝试过这个:

int TableNo = (int)comboBoxOrder.getItems();

Answer 1

comboBox.getValue() 将返回选定的对象，因此您可能需要 .toString() 它

public class MainNoFXML extends Application {

    public static void main(String[] args) { launch(args); }

    @Override
    public void start(Stage primaryStage) {
        ComboBox comboBox = new ComboBox(FXCollections.observableArrayList(new String[]{"Monday", "Tuesday", "Wednesday", "Thrusday", "Friday"}));
        comboBox.setOnAction(event -> {
            System.out.println("Selected:"+comboBox.getValue().toString());
            System.out.println("All:"+comboBox.getItems().toString());
        });

        Scene scene = new Scene(comboBox);
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}