leaverequest.fxml

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

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.DatePicker?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>

<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.leaverequest">
   <children>
      <DatePicker fx:id="from" layoutX="117.0" layoutY="120.0" promptText="From" />
      <DatePicker fx:id="to" layoutX="370.0" layoutY="120.0" promptText="To" />
      <TextField fx:id="reason" layoutX="117.0" layoutY="175.0" promptText="Reason" />
      <Button fx:id="submitbtn" layoutX="265.0" layoutY="278.0" mnemonicParsing="false" onAction="#submit" text="Submit" />
      <Label fx:id="label" layoutX="286.0" layoutY="227.0" />
   </children>
</AnchorPane>