fxml_example.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="10" left="25"/></padding>
<Text  id="welcome-text" text="Welcome" 
        GridPane.columnIndex="0" GridPane.rowIndex="0"
        GridPane.columnSpan="2"/>
     
    <Label text="User Name:" id="usr"
        GridPane.columnIndex="0" GridPane.rowIndex="1"/>
 
    <TextField 
        GridPane.columnIndex="1" GridPane.rowIndex="1"/>
 
    <Label text="Password:" id ="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>