JavaFX SceneBuilder Label setText not working

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JavaFX SceneBuilder Label setText not working

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#2 by (0 votes)

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I can not put text to Label in javafx using scenebuilder .

This is where I declare my Label (I do not get any errors either) :

package application;

import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;

import java.util.Calendar;

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.stage.Stage;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;

public class Main extends Application {
    //Calendar used
    public Calendar cal;
    //variables for get the number of week+current year
    public static int weeks, year;
    @FXML
    //Text areas for the 4 weeks column
    public TextArea week1,week2,week3,week4;
    @FXML 
    //4 control Buttons
    public Button prev,next,next2,prev2, start;
    @FXML
    //Labels
    public Label lab1;

Here is the method I use to put the text:

public void ClickStart (ActionEvent event){
        lab1=new Label();
        lab1.setText("hola");
        cal=Calendar.getInstance();
        year = cal.get(Calendar.YEAR);
        weeks= cal.get(Calendar.WEEK_OF_YEAR);
        week1.setText("Week " + Integer.toString(weeks) + " " + Integer.toString(year));
        cal.add(Calendar.WEEK_OF_YEAR, 1);
        weeks= cal.get(Calendar.WEEK_OF_YEAR);
        year = cal.get(Calendar.YEAR);
        week2.setText("Week " + Integer.toString(weeks) + " " + Integer.toString(year));
        cal.add(Calendar.WEEK_OF_YEAR, 1);
        weeks= cal.get(Calendar.WEEK_OF_YEAR);
        year = cal.get(Calendar.YEAR);
        week3.setText("Week " + Integer.toString(weeks) + " " + Integer.toString(year));
        cal.add(Calendar.WEEK_OF_YEAR, 1);
        weeks= cal.get(Calendar.WEEK_OF_YEAR);
        year = cal.get(Calendar.YEAR);
        week4.setText("Week " + Integer.toString(weeks) + " " + Integer.toString(year));
        cal.add(Calendar.WEEK_OF_YEAR, -3);
        }

Here is the complete .fxml file, if necessary:

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

<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.VBox?>

<GridPane xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/2.2" fx:controller="application.Main">
  <children>
    <GridPane>
      <children>
        <GridPane>
          <children>
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Monday" wrapText="true" GridPane.columnIndex="1" GridPane.rowIndex="0" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Tuesday" wrapText="true" GridPane.columnIndex="2" GridPane.rowIndex="0" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Wednesday" wrapText="true" GridPane.columnIndex="3" GridPane.rowIndex="0" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Thursday" wrapText="true" GridPane.columnIndex="4" GridPane.rowIndex="0" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Friday" wrapText="true" GridPane.columnIndex="5" GridPane.rowIndex="0" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Saturday" wrapText="true" GridPane.columnIndex="6" GridPane.rowIndex="0" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Sunday" wrapText="true" GridPane.columnIndex="7" GridPane.rowIndex="0" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Monday" wrapText="true" GridPane.columnIndex="1" GridPane.rowIndex="9" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Tuesday" wrapText="true" GridPane.columnIndex="2" GridPane.rowIndex="9" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Wednesday" wrapText="true" GridPane.columnIndex="3" GridPane.rowIndex="9" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Thursday" wrapText="true" GridPane.columnIndex="4" GridPane.rowIndex="9" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Friday" wrapText="true" GridPane.columnIndex="5" GridPane.rowIndex="9" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Saturday" wrapText="true" GridPane.columnIndex="6" GridPane.rowIndex="9" />
            <TextArea editable="false" mouseTransparent="false" prefWidth="200.0" text="Sunday" wrapText="true" GridPane.columnIndex="7" GridPane.rowIndex="9" />
            <Button id="prev" fx:id="prev2" mnemonicParsing="false" onAction="#ClickMinus" prefHeight="30.0" prefWidth="70.0" text="prev" GridPane.columnIndex="8" GridPane.rowIndex="0" />
            <Button fx:id="next" mnemonicParsing="false" onAction="#ClickPlus" prefHeight="29.999900000002526" prefWidth="70.00009999999747" text="next" GridPane.columnIndex="0" GridPane.rowIndex="9" />
            <Button fx:id="next2" mnemonicParsing="false" onAction="#ClickPlus" prefHeight="30.0" prefWidth="70.0" text="next" GridPane.columnIndex="8" GridPane.rowIndex="9" />
            <Button fx:id="prev" mnemonicParsing="false" onAction="#ClickMinus" prefHeight="30.0" prefWidth="70.0" text="prev" GridPane.columnIndex="0" GridPane.rowIndex="0" />
            <TextArea fx:id="week1" prefWidth="200.0" text="Week x Year x" wrapText="true" GridPane.columnIndex="0" GridPane.rowIndex="2" />
            <TextArea fx:id="week2" prefWidth="200.0" text="Week x Year x" wrapText="true" GridPane.columnIndex="0" GridPane.rowIndex="4" />
            <TextArea fx:id="week4" prefWidth="200.0" text="Week x Year x" wrapText="true" GridPane.columnIndex="0" GridPane.rowIndex="8" />
            <Label  id= "lab1" fx:id="lab1" prefHeight="40.000099999997474" prefWidth="150.0" text="" GridPane.columnIndex="1" GridPane.rowIndex="1" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="2" GridPane.rowIndex="1" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="3" GridPane.rowIndex="1" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="4" GridPane.rowIndex="1" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="5" GridPane.rowIndex="1" />
            <Label minHeight="14.0" prefHeight="14.0" prefWidth="150.0" text="Label" GridPane.columnIndex="1" GridPane.rowIndex="3" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="2" GridPane.rowIndex="3" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="3" GridPane.rowIndex="3" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="2" GridPane.rowIndex="5" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="1" GridPane.rowIndex="5" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="3" GridPane.rowIndex="5" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="4" GridPane.rowIndex="5" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="4" GridPane.rowIndex="3" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="5" GridPane.rowIndex="3" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="5" GridPane.rowIndex="5" />
            <Label prefHeight="533.0" prefWidth="70.0" text="Label" GridPane.columnIndex="1" GridPane.rowIndex="7" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="2" GridPane.rowIndex="7" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="6" GridPane.rowIndex="1" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="7" GridPane.rowIndex="1" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="6" GridPane.rowIndex="3" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="3" GridPane.rowIndex="7" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="4" GridPane.rowIndex="7" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="5" GridPane.rowIndex="7" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="6" GridPane.rowIndex="5" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="6" GridPane.rowIndex="7" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="7" GridPane.rowIndex="7" />
            <Label prefHeight="44.0" prefWidth="87.0" text="Label" GridPane.columnIndex="7" GridPane.rowIndex="5" />
            <Label prefHeight="44.0" prefWidth="139.0" text="Label" GridPane.columnIndex="7" GridPane.rowIndex="3" />
            <TextArea fx:id="week3" prefHeight="100.00009999999747" prefWidth="70.0" text="Week x Year x" wrapText="true" GridPane.columnIndex="0" GridPane.rowIndex="6" />
            <Button fx:id="start" mnemonicParsing="false" onAction="#ClickStart" prefHeight="30.0" prefWidth="70.0" text="Start" GridPane.columnIndex="0" GridPane.rowIndex="1" />
          </children>
          <columnConstraints>
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="70.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="150.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="150.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="150.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="150.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="150.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="150.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="150.0" />
            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="70.0" />
          </columnConstraints>
          <rowConstraints>
            <RowConstraints minHeight="10.0" prefHeight="40.0" vgrow="SOMETIMES" />
            <RowConstraints minHeight="10.0" prefHeight="40.0" vgrow="SOMETIMES" />
            <RowConstraints minHeight="10.0" prefHeight="100.0" vgrow="SOMETIMES" />
            <RowConstraints minHeight="10.0" prefHeight="40.0" vgrow="SOMETIMES" />
            <RowConstraints minHeight="10.0" prefHeight="100.0" vgrow="SOMETIMES" />
            <RowConstraints minHeight="10.0" prefHeight="40.0" vgrow="SOMETIMES" />
            <RowConstraints minHeight="10.0" prefHeight="100.0" vgrow="SOMETIMES" />
            <RowConstraints minHeight="10.0" prefHeight="40.0" vgrow="SOMETIMES" />
            <RowConstraints minHeight="10.0" prefHeight="100.0" vgrow="SOMETIMES" />
            <RowConstraints minHeight="10.0" prefHeight="40.0" vgrow="SOMETIMES" />
          </rowConstraints>
        </GridPane>
      </children>
      <columnConstraints>
        <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
      </columnConstraints>
      <rowConstraints>
        <RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
      </rowConstraints>
    </GridPane>
  </children>
  <columnConstraints>
    <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
  </columnConstraints>
  <rowConstraints>
    <RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
  </rowConstraints>
</GridPane>

java javafx

asked by Javier Bertoméu Muñoz 24.03.2017 в 12:51

source

2 answers

javafx tableview columview with button I need that when clicking auto select the row Error (401) Unauthorized, when consuming WSDL service

score 0 · Answer 1

Variables annotated with @FXML are assigned when loading fxml .

You are instantiating a new label at the start of ClickStart , so lab1 no longer points to the component that is being displayed in the scene.

score 0 · Answer 2

0

Geh's answer is correct. What you have to do is remove the label statement lab1:

public void ClickStart (ActionEvent event){
        lab1=new Label(); // <--- ¡elimina esto!
        ...

answered by 23.01.2018 в 13:19