getting text from textfield java fxml -

here fxml code , java controller file code. trying text textfield tf in handle event using "string s = tf.gettext().tostring();" not getting executed.

<?xml version="1.0" encoding="utf-8"?>  <?import javafx.geometry.*?> <?import javafx.scene.control.*?> <?import java.lang.*?> <?import javafx.scene.layout.*?> <?import javafx.scene.layout.anchorpane?>  <anchorpane fx:id = "apane" prefheight="268.0" prefwidth="379.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8" fx:controller="sample.searchcontroller">   <children>   <vbox layoutx="20.0" layouty="36.0" prefheight="232.0" prefwidth="333.0">      <children>         <hbox prefheight="36.0" prefwidth="333.0">            <children>               <label fx:id= "kw" text="key word : ">                  <padding>                     <insets right="10.0" />                  </padding>               </label>               <textfield fx:id="tf" prefheight="25.0" prefwidth="120.0" />               <button fx:id="srch" mnemonicparsing="false" onaction="#handle" text="search" >                  <hbox.margin>                     <insets left="10.0" />                  </hbox.margin>               </button>            </children>            <padding>               <insets left="6.0" top="6.0" />            </padding>            <vbox.margin>               <insets />            </vbox.margin>            <opaqueinsets>               <insets />            </opaqueinsets>         </hbox>         <textarea fx:id="ta" prefheight="174.0" prefwidth="282.0" />      </children>   </vbox>   </children>   </anchorpane> 

java controller code :

public class searchcontroller implements initializable,eventhandler<actionevent> {    anchorpane apane = new anchorpane();   label kw = new label();   public textfield tf;   button srch = new button();   textarea ta = new textarea();   //text t;   string s = "priyam";    @override   public void initialize(url location, resourcebundle resources) {     // todo auto-generated method stub     tf = new textfield();   }    @override   public void handle(actionevent arg0) {     // todo auto-generated method stub     s=tf.gettext().tostring();     system.out.println(s);   } } 

the method initialize() overrides value of tf. initialize textfield object tf new object.

@override public void initialize(url location, resourcebundle resources) {   // todo auto-generated method stub   tf = new textfield(); }