JavaFX | TextInputDialog

TextInputDialog является частью библиотеки JavaFX. TextInputDialog - это диалоговое окно, которое позволяет пользователю вводить текст, и диалоговое окно содержит текст заголовка, TextField и кнопки подтверждения.

Конструкторами класса TextInputDialog являются:

1. TextInputDialog () : создает диалог ввода текста без исходного текста.
2. TextInputDialog (String txt) : создает диалог ввода текста с исходным текстом txt .

Обычно используемые методы:

Below programs illustrate the TextInputDialog class:

1. Program to create a TextInputDialog and add it to the stage: This program creates a TextInputDialog with an initial text and a header text. The header text is set using setHeaderText() function. Button is indicated by the name d and text input dialog will have name td. The button will be created inside a scene, which in turn will be hosted inside a stage. The function setTitle() is used to provide title to the stage. Then a tile pane is created, on which addChildren() method is called to attach the button inside the scene. Finally, the show() method is called to display the final results. The TextInputDialog will be shown on the click of the button.

   // Java Program to create a text input // dialog and add it to the stage import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.layout.*; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.control.*; import javafx.stage.Stage; import javafx.scene.control.Alert.AlertType; import java.time.LocalDate; public class TextInputDialog_1 extends Application {        // launch the application     public void start(Stage s)     {         // set title for the stage         s.setTitle("creating textInput dialog");            // create a tile pane         TilePane r = new TilePane();            // create a text input dialog         TextInputDialog td = new TextInputDialog("enter any text");            // setHeaderText         td.setHeaderText("enter your name");            // create a button         Button d = new Button("click");            // create a event handler         EventHandler<ActionEvent> event = new EventHandler<ActionEvent>() {             public void handle(ActionEvent e)             {                 // show the text input dialog                 td.show();             }         };            // set on action of event         d.setOnAction(event);            // add button and label         r.getChildren().add(d);            // create a scene         Scene sc = new Scene(r, 500, 300);            // set the scene         s.setScene(sc);            s.show();     }        public static void main(String args[])     {         // launch the application         launch(args);     } }

   Output:
   

2. Program to create a TextInputDialog and add a label to display the text entered: This program creates a TextInputDialog (td). Button indicated by the name d and TextInputDialog will have name td. The button will be created inside a scene, which in turn will be hosted inside a stage. The function setTitle() is used to provide title to the stage. Then a tile pane is created, on which addChildren() method is called to attach the button inside the scene. Finally, the show() method is called to display the final results.when the button will be clicked the text input dialog will be shown. A label named l will be created that will be added to the scene which will show the text that the user inputs in the dialog.

   // Java Program to create a text input dialog // and add a label to display the text entered import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.layout.*; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.control.*; import javafx.stage.Stage; import javafx.scene.control.Alert.AlertType; import java.time.LocalDate; public class TextInputDialog_2 extends Application {        // launch the application     public void start(Stage s)     {         // set title for the stage         s.setTitle("creating textInput dialog");            // create a tile pane         TilePane r = new TilePane();            // create a label to show the input in text dialog         Label l = new Label("no text input");            // create a text input dialog         TextInputDialog td = new TextInputDialog();            // create a button         Button d = new Button("click");            // create a event handler         EventHandler<ActionEvent> event = new EventHandler<ActionEvent>() {             public void handle(ActionEvent e)             {                 // show the text input dialog                 td.showAndWait();                    // set the text of the label                 l.setText(td.getEditor().getText());             }         };            // set on action of event         d.setOnAction(event);            // add button and label         r.getChildren().add(d);         r.getChildren().add(l);            // create a scene         Scene sc = new Scene(r, 500, 300);            // set the scene         s.setScene(sc);            s.show();     }        public static void main(String args[])     {         // launch the application         launch(args);     } }

   Output:
   

   Note : The above programs might not run in an online IDE please use an offline IDE.

   Reference: https://docs.oracle.com/javase/8/javafx/api/javafx/scene/control/TextInputDialog.html

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