如何将 GUI 中的输入数据存储到数组列表中？

Question

用户输入车辆名称和 ID 并单击添加车辆后，您将创建一个车辆对象并将其存储到车辆的数组列表中。如何将来自GUI的输入数据存储到数组列表中？import javafx.application.Application;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.Scene;import javafx.scene.control.Button;import javafx.scene.control.Label;import javafx.scene.control.TextField;import javafx.scene.layout.GridPane;import javafx.stage.Stage;public class Main extends Application {    public static void main(String[] args) {        Application.launch(args);    }    @Override    public void start(Stage primaryStage) throws Exception {        GridPane gridPane = new GridPane();        Label VehicleName = new Label("Vehicle Name ");        TextField VehicleNameF = new TextField();        Label Vehicle_ID = new Label("Vehicle ID");        TextField VehicleID = new TextField();        Button AddButton = new Button("Add Vehicle");        gridPane.setHgap(15);        gridPane.setVgap(15);        gridPane.add(VehicleName, 0, 0);        gridPane.add(Vehicle_ID, 0, 1);        gridPane.add(VehicleNameF, 1, 0);        gridPane.add(VehicleID, 1, 1);        gridPane.add(AddButton, 1, 2, 2, 1);        Scene scene = new Scene(gridPane, 300, 150);        primaryStage.setScene(scene);        primaryStage.show();    }}

Answer 1

首先，为您的对象创建一个数组：车辆。

要从 GUI 获取数据，您需要事件侦听器：

AddButton.setOnAction(e -> 

{  

 Vehicule vehicule = new Vehicule();  

 vehicle.setVehicleId(VehicleID.getText());

 vehicle.setVehicleName(VehicleNameF.getText());

 Vehicules.add(vehicule);

 //Vehicules is the array where you put all your objects.

})

这是否回答了您的问题？

Answer 2

首先，您必须创建：

class Vehicle {

    long vehicleId;

    String vehicleName;

    Vehicle(){

    }

    void setVehicleId(long vehicleID){

       this.vehicleId=vehicleID;

    } 

    long getVehicleId(){

        return vehicleId;

    }

    void setVehicleName(vehicleName){

        this.vehicleName=vehicleName;

    }

    String getVehicleName(){

        return vehicleName;

    }

}

接下来，您必须创建新对象：

Vehicle vehicle1=new Vehicle();

在要添加指定值的位置

vehicle1.setVehicleName(Vehicle name-variable got from swing);

vehicle1.setVehicleId(Vehicle id-variable got from swing);

以及列表：

List<Vehicle> vehiclesList=new ArrayList<Vehicle>()

vehiclesList.add(vehicle1);

Answer 3

您缺少类似以下内容的内容：

AddButton.setOnAction(e -> 

{    

   vehicle1.setVehicleId(VehicleID.getText());

   vehicle1.setVehicleName(VehicleNameF.getText());

});