Question

一旦用户输入了车辆名称和ID，然后点击添加车辆，就可以创建一个车辆对象并将其存储在车辆数组列表中。

如何将来自GUI的输入数据存储到arraylist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，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;
    }
}

下一步，您必须创建新的对象：

Vehicle vehicle1=new Vehicle();

要添加指定值的地方

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

列表：

List<Vehicle> vehiclesList=new ArrayList<Vehicle>()
vehiclesList.add(vehicle1);

Answer 2

您缺少以下内容：

AddButton.setOnAction(e -> 
{    
   vehicle1.setVehicleId(VehicleID.getText());
   vehicle1.setVehicleName(VehicleNameF.getText());
});

Answer 3

首先，为您的对象创建一个数组：车辆。

要从GUI获取数据，您需要事件监听器：

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.
})

这能回答您的问题吗？

如何将输入数据从GUI存储到ArrayList中？

3 个答案: