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Java – All in One

Java – All in One

JavaFX ListView – CRUD – ADD UPDATE DELETE

 

JavaFX ListView CRUD Tutorial and Example

This is a JavaFX ListView CRUD tutorial. We see how to perform basic CRUD – ADD UPDATE DELETE in Java FX against a ListView.

Video Tutorial(ProgrammingWizards TV Channel)

Well we have a video tutorial as an alternative to this. If you prefer tutorials like this one then it would be good you subscribe to our YouTube channel. Basically we have a TV for programming where do daily tutorials especially android.

MrListViewCRUD.java

This is our only java file. We’ll make it derive from the javafx.application.Application to turn our class into a JavaFX application. That will then force us to override the start() method. It is this method that is the entry point to our JavaFX application. It will receive a Stage object as a parameter.

Our data object is a static class we call SpiritualTeacher. It will represent a single spiritual teacher and it’s properties. In this case we use only a single property, that is the name. We will represent using a SimpleStringProperty object. So we will be performing CRUD operations on the SpiritualTeacher objects, adding them to our listview, updating them, showing them and deleting them.

We will be using an observableArrayList as our data source.

Here’s the code:

package mrlistviewcrud;
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.geometry.Insets;
import javafx.scene.control.TextField;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Button;
import javafx.scene.control.Dialog;
import javafx.scene.control.Label;
import javafx.scene.control.ListView;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
public class MrListViewCRUD extends Application {
/*
Our data Object
*/
public static class SpiritualTeacher {
private final SimpleStringProperty name;
private SpiritualTeacher(String name) {
this.name = new SimpleStringProperty(name);
}
public String getName() {
return name.get();
}
public void setName(String mName) {
name.set(mName);
}
@Override
public String toString() {
return getName(); 
}
}
/*
ObservableList. Our data source.
*/
private final ObservableList<SpiritualTeacher> spiritualTeachers =
FXCollections.observableArrayList(
new SpiritualTeacher("Sedata"),
new SpiritualTeacher("Meister Eckhart"),
new SpiritualTeacher("Confucius"),
new SpiritualTeacher("Rumi"),
new SpiritualTeacher("Ramana Maharshi"));
private int selectedIndex=-1;
/*
JavaFx Start Method
*/
@Override
public void start(Stage stage) throws Exception {
Scene scene = new Scene(new Group());
stage.setTitle("JavaFX ListView CRUD - ADD UPDATE DELETE CLEAR");
stage.setWidth(450);
stage.setHeight(550);
Label nameLabel = new Label("Spiritial Teachers");
nameLabel.setFont(new Font("Arial", 20));
TextField nameTxt = new TextField();
nameTxt.setPromptText("Name");
ListView myListView=new ListView();
myListView.setItems(spiritualTeachers);
myListView.setOnMouseClicked(event -> {
String selectedItem = myListView.getSelectionModel().getSelectedItem().toString();
selectedIndex=myListView.getSelectionModel().getSelectedIndex();
nameTxt.setText(selectedItem);
});
Button addButton = new Button("Add");
addButton.setOnAction((ActionEvent e) -> {
spiritualTeachers.add(new SpiritualTeacher(nameTxt.getText()));
nameTxt.clear();
});
Button updateBtn = new Button("Update");
updateBtn.setOnAction((ActionEvent e) -> {
Dialog d=new Alert(Alert.AlertType.INFORMATION,String.valueOf(selectedIndex));
d.show();
spiritualTeachers.remove(selectedIndex);
spiritualTeachers.add(selectedIndex, new SpiritualTeacher(nameTxt.getText()));
nameTxt.clear();
});
Button deleteBtn = new Button("Delete");
deleteBtn.setOnAction((ActionEvent e) -> {
spiritualTeachers.remove(selectedIndex);
nameTxt.clear();
});
Button clearBtn = new Button("Clear");
clearBtn.setOnAction((ActionEvent e) -> {
spiritualTeachers.clear();
nameTxt.clear();
});
HBox myHBox = new HBox();
myHBox.getChildren().addAll(nameTxt, addButton,updateBtn,deleteBtn,clearBtn);
myHBox.setSpacing(3);
VBox myVBox = new VBox();
myVBox.setSpacing(5);
myVBox.setPadding(new Insets(10, 0, 0, 10));
myVBox.getChildren().addAll(nameLabel, myListView, myHBox);
((Group) scene.getRoot()).getChildren().addAll(myVBox);
stage.setScene(scene);
stage.show();
}
/*
Main method
*/
public static void main(String[] args) {
Application.launch(args);
}
}

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