Ejemplo de código javafx gridpane fxml

Ejemplo 1: ejemplo de gridpane javafx

Button button1 = new Button("Button 1");
Button button2 = new Button("Button 2");
Button button3 = new Button("Button 3");
Button button4 = new Button("Button 4");
Button button5 = new Button("Button 5");
Button button6 = new Button("Button 6");

GridPane gridPane = new GridPane();

gridPane.add(button1, 0, 0, 1, 1);
gridPane.add(button2, 1, 0, 1, 1);
gridPane.add(button3, 2, 0, 1, 1);
gridPane.add(button4, 0, 1, 1, 1);
gridPane.add(button5, 1, 1, 1, 1);
gridPane.add(button6, 2, 1, 1, 1);

Ejemplo 2: relleno fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import java.net.*?>
<?import javafx.geometry.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>


<GridPane fx:controller="fxmlexample.FXMLExampleController" 
    xmlns:fx="http://javafx.com/fxml" alignment="center" hgap="10" vgap="10"
    styleClass="root">
    <padding><Insets top="25" right="25" bottom="25" left="25"/></padding>
    
    <Text id="welcome-text" text="Welcome" 
         GridPane.columnIndex="0" GridPane.rowIndex="0"
        GridPane.columnSpan="2"/>
 
    <Label text="User Name:"
        GridPane.columnIndex="0" GridPane.rowIndex="1"/>
 
    <TextField 
        GridPane.columnIndex="1" GridPane.rowIndex="1"/>
 
    <Label text="Password:"
        GridPane.columnIndex="0" GridPane.rowIndex="2"/>
 
    <PasswordField fx:id="passwordField" 
        GridPane.columnIndex="1" GridPane.rowIndex="2"/>
        
    <HBox spacing="10" alignment="bottom_right" 
        GridPane.columnIndex="1" GridPane.rowIndex="4">
        <Button text="Sign In"     
        onAction="#handleSubmitButtonAction"/>
    </HBox>

    <Text fx:id="actiontarget"
        GridPane.columnIndex="1" GridPane.rowIndex="6"/>
        
    <stylesheets>      <URL value="@Login.css" />    </stylesheets>
</GridPane>

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