Kensoft PH
  • Download
  • Contact
  • About
Java Quiz
No Result
View All Result
Kensoft PH
  • Download
  • Contact
  • About
Java Quiz
No Result
View All Result
Kensoft PH
No Result
View All Result
Home Java

Count number of characters in JavaFX | 100% best for beginners

August 6, 2021 - Updated on October 29, 2021
in Java
Reading Time: 3 mins read
0
count number of characters in java
351
VIEWS
Share on FacebookShare on TwitterShare via Email

Contents

  • JavaFX Tutorial
  • bindBidirectional binding
    • Example
  • Rules of binding
  • How to count number of characters in JavaFX
    • Example
    • Output
  • YouTube Video

JavaFX Tutorial

You’ve come to this page to discover how to count number of characters in JavaFX. In this article, we will count number of characters in Java using a JavaFX Textfield. When we type something into the Textfield, it automatically counts the number of characters using the binding API in JavaFX.

The binding API allows you to simplify listeners to just one line of code. It makes interacting with JavaFX components or nodes a lot easier. We will be working with the Property API and bind() method. In addition to getters and setters. JavaFX property API provides almost all to its classes fields. We need a property API to access the property of JavaFX components or nodes. The property has two important APIs it is Observable and Binding.

count number of characters in java

Observable API allows you to monitor the change event of corresponding property of a JavaFX component or node.

The bind() method comes from the base property. The bind API has the following API methods.

  • bind() – Binds a property to observable
  • unBind() – To stop the binding
  • boolean isBound() – To check whether the property is bound.
  • bindBidirectional(Property<T> other) – This is to ties two properties together in both directions
  • unbindBidectional(Property<T> other) – This to stop the bidirectional binding

Bidirectional binding connects two properties making them always have the same value. Consider the following example for bidirectional binding.

bindBidirectional binding

Example

Slider slider1 = new Slider(0, 120, 45);
Slider slider2 = new Slider(0, 120, 45);
slider1.valueProperty().bindBidirectional(slider2.valueProperty());

Rules of binding

Binding looks very simple to use but there are several rules that you need to be aware.

  1. Read-only properties cannot be bound
  2. Only one bind can be active for a property, but several properties can be bound to another one
  3. Binding and setters do not work togther
  4. Bidirectional binding are less strict

number of characters in java

How to count number of characters in JavaFX

We will use the bind() method to count number of characters in JavaFX. Let’s pretend that we have a JavaFX TextField and a Label. When we type something in the TextField, the number of characters in JavaFX TextField is automatically counted. What exactly do we need in order to count number of characters in javafx? Take a look at the bullets below.

  • textProperty() – Property of the object to be changed
  • bind() – Bind call
  • length() – Returns integerBinding type, not just an integer.
  • concat() – A constant that will be used as a string

number of characters in java

Example

The following sample code is to count the number of characters in JavaFX Textfield. These are the variables are being used in the exampe code below.

  • lbl_result – JavaFX Label
  • txtfield – JavaFX TextField
lbl_result.textProperty().bind(Bindings.concat(lbl_result.getText(), txtfield.textProperty().length()));

Output

count number of characters in java

YouTube Video

How to count the number of letters in Java application
Watch this video on YouTube.

Previous article

Tags: count number of characters in javanumber of characters in java
Previous Post

How to get current date in Java | 100% best for beginners

Next Post

How to get the window size in JavaFX | 100% best tutorial

KENSOFT

KENSOFT

What’s up! Kent is my name. The name KENSOFT is derived from the words Kent and Software. My programming language of choice is Java

Related tutorials

JavaFX MenuButton
Java

How to use the JavaFX MenuButton | 100% Perfect Tutorial

June 19, 2022
17
How to use the JavaFX Hyperlink | 100% Perfect for beginner
Java

How to use the JavaFX Hyperlink | 100% Perfect for beginner

May 24, 2022
45
JavaFX Label Tutorial
Java

JavaFX Label Tutorial | 100% Perfect for beginners

May 17, 2022
45
Next Post
Window size in JavaFX

How to get the window size in JavaFX | 100% best tutorial

JavaFX CSS Tutorial

JavaFX CSS Tutorial for beginners | 100% best for beginners

ScrollPane in JavaFX

ScrollPane in JavaFX | 100% best tutorial for beginners

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

  • Trending
  • Comments
  • Latest
Failed to automatically set up a JavaFX Platform

Failed to automatically set up a JavaFX Platform SOLVED Apache NetBeans 12.3 | Best way

April 11, 2021 - Updated on November 28, 2021
MySQL database using XAMPP

How to connect Java to MySQL database using Xampp server | 100% best for beginners

October 27, 2020 - Updated on April 30, 2022
JavaFX 17

How To install JDK 17 and JavaFX 17 on NetBeans IDE | Best

November 15, 2021 - Updated on December 13, 2021
change the stage icon in JavaFX

How to change the stage icon in JavaFX | 100% best for beginners

May 23, 2021 - Updated on October 29, 2021
Failed to automatically set up a JavaFX Platform

Failed to automatically set up a JavaFX Platform SOLVED Apache NetBeans 12.3 | Best way

3DES in Java and AES in Java

How to use AES and 3DES in Java | 100% best for beginners

JavaFX Splash Screen

How to create JavaFX Splash Screen | 100% best for beginners

send SMS in java

How to send SMS in Java | 100% best example

JavaFX MenuButton

How to use the JavaFX MenuButton | 100% Perfect Tutorial

June 19, 2022
How to use the JavaFX Hyperlink | 100% Perfect for beginner

How to use the JavaFX Hyperlink | 100% Perfect for beginner

May 24, 2022
JavaFX Label Tutorial

JavaFX Label Tutorial | 100% Perfect for beginners

May 17, 2022
JavaFX Button

JavaFX Button with examples | 100% Perfect for beginners

May 14, 2022

Latest Tutorials

JavaFX MenuButton

How to use the JavaFX MenuButton | 100% Perfect Tutorial

June 19, 2022
How to use the JavaFX Hyperlink | 100% Perfect for beginner

How to use the JavaFX Hyperlink | 100% Perfect for beginner

May 24, 2022
JavaFX Label Tutorial

JavaFX Label Tutorial | 100% Perfect for beginners

May 17, 2022

Popular Tutorials

  • Failed to automatically set up a JavaFX Platform

    Failed to automatically set up a JavaFX Platform SOLVED Apache NetBeans 12.3 | Best way

    0 shares
    Share 0 Tweet 0
  • How to connect Java to MySQL database using Xampp server | 100% best for beginners

    0 shares
    Share 0 Tweet 0
  • How To install JDK 17 and JavaFX 17 on NetBeans IDE | Best

    0 shares
    Share 0 Tweet 0
Facebook Instagram Youtube
Kensoft PH

What’s up! Kent is my name. The name KENSOFT is derived from the words Kent and Software. My programming language of choice is Java, which I use to create computer applications. In a company, I created applications and a website.

Website

Privacy Policy

Terms and Condition

Services

Guest Post

Fiverr

Freelancer

Upwork

Categories

Website Status

Check the status

Latest Tutorials

JavaFX MenuButton

How to use the JavaFX MenuButton | 100% Perfect Tutorial

June 19, 2022
How to use the JavaFX Hyperlink | 100% Perfect for beginner

How to use the JavaFX Hyperlink | 100% Perfect for beginner

May 24, 2022
JavaFX Label Tutorial

JavaFX Label Tutorial | 100% Perfect for beginners

May 17, 2022

© 2022 Made With Love By KENSOFT PH

No Result
View All Result
  • Download
  • Java Quiz
  • Contact
  • About

© 2022 Made With Love By KENSOFT PH