Android back button event with example

Android device back button is to navigate from current activity to previous activity. In that case we are using below code...

Regex Character Classes with example

Regex Character Classes : [abc] : a,b or c characters only [^abc] : Any character except a, b or c character. [a-zA-Z]...

What is regex in Java and How to use it.

Java Regex : Java Regex and regular expression is an API which define pattern for searching or manipulating strings. It...

What is Java Bean with Example

Java Bean : Java bean is a class which contains all the properties are private and contains getter/setter methods corresponding...

How to check internet is connected or not in android

import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; public class...

Apply css class on html elements using jQuery

$('div').addClass('active'); // here active is the class name which you want to apply on your html page. // div is the...

Replace html contents using jQuery

$('li').html('New HTML');  // this replaced all list items on your page with specified contents. $('div').html('New...

What is $(document).ready() ?

What is $(document).ready() ? Before you can safely use jQuery to do anything to your page, you need to ensure that the...

What do you mean by $ symbol in jQuery ?

jQuery is the library of javascript functions. $ is used for accessing functions which are defined in librar...