JavaFX: TableView: Adding new rows to a table

This is continuation to my previous post. In this post, I am going to show, how to add new rows to a table.

I used below list to add data to a table.

         private static final ObservableList<Friend> data = FXCollections.observableArrayList(

                           new Friend("Hari", "Krishna", "krishna@krishna.com"),

                           new Friend("Bhairava", "beddu", "bhairava@bhairava.com"),

                           new Friend("ahswani", "sharmaSekar", "ashwani@ashwani.com"),

                           new Friend("chandra", "babu", "chandra@babu.com"));

At any point of time, you can add new row to a table by adding new object to the observable list ‘data’.

Find the below working application.

Friend.java

package com.sample.model;

public class Friend {
 private final String firstName;
 private final String lastName;
 private final String email;

 public Friend(String fName, String lName, String email) {
  this.firstName = fName;
  this.lastName = lName;
  this.email = email;
 }

 public String getFirstName() {
  return firstName;
 }

 public String getLastName() {
  return lastName;
 }

 public String getEmail() {
  return email;
 }

}

TableViewApp.java

package com.sample.demos;

import com.sample.model.Friend;

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;

public class TableViewApp extends Application {
 private static final ObservableList<Friend> data = FXCollections.observableArrayList(
   new Friend("Hari", "Krishna", "krishna@krishna.com"),
   new Friend("Bhairava", "beddu", "bhairava@bhairava.com"),
   new Friend("ahswani", "sharmaSekar", "ashwani@ashwani.com"),
   new Friend("chandra", "babu", "chandra@babu.com"));

 @Override
 public void start(Stage primaryStage) {
  Label label = new Label("My Friends List");
  label.setFont(new Font("Arial", 30));

  TableView tableView = new TableView();

  TableColumn firstNameCol = new TableColumn("First Name");
  firstNameCol.setMinWidth(300);

  TableColumn lastNameCol = new TableColumn("Last Name");
  lastNameCol.setMinWidth(300);

  TableColumn emailCol = new TableColumn("Email");
  emailCol.setMinWidth(300);

  tableView.getColumns().addAll(firstNameCol, lastNameCol, emailCol);

  firstNameCol.setCellValueFactory(new PropertyValueFactory<>("firstName"));
  lastNameCol.setCellValueFactory(new PropertyValueFactory<>("lastName"));
  emailCol.setCellValueFactory(new PropertyValueFactory<>("email"));

  tableView.setItems(data);

  final TextField addFirstName = new TextField();
  addFirstName.setPromptText("First Name");
  addFirstName.setMaxWidth(firstNameCol.getPrefWidth());

  final TextField addLastName = new TextField();
  addLastName.setMaxWidth(lastNameCol.getPrefWidth());
  addLastName.setPromptText("Last Name");

  final TextField addEmail = new TextField();
  addEmail.setMaxWidth(emailCol.getPrefWidth());
  addEmail.setPromptText("Email");

  final Button addButton = new Button("Add");
  addButton.setOnAction((ActionEvent e) -> {
   data.add(new Friend(addFirstName.getText(), addLastName.getText(), addEmail.getText()));
   addFirstName.clear();
   addLastName.clear();
   addEmail.clear();
  });
  
  HBox hBox = new HBox(10, addFirstName, addLastName, addEmail, addButton);
  
  VBox vBox = new VBox(10, label, tableView, hBox);
  vBox.setSpacing(5);
  vBox.setPadding(new Insets(10, 10, 10, 10));

  primaryStage.setScene(new Scene(vBox));
  primaryStage.setTitle("Table View Example");
  primaryStage.setWidth(900);
  primaryStage.setHeight(500);
  primaryStage.show();
 }

}

TestFX.java

package com.sample.demos;

import javafx.application.Application;

public class TestFX {
 public static void main(String args[]) {
  Application.launch(TableViewApp.class, args);
 }
}

After adding new entry ‘Harini’ table changed like below.

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