Java volatile Example
In this tutorial, we will discuss the Java volatile Example. What is Java volatile? The Java volatile keyword is utilized…
Install Spring STS in Eclipse
This guide shows you how to install Spring Tool Suite in Eclipse (more…)
Create Simple Spring Web App with STS
This tutorial will show you how to build a simple web app using Spring Framework and STS (Spring Tool Suite).…
Introduction to Spring Web Framework
In this article I will explain the key concepts behind Spring Framework and how to use it further to build…
How to set JAVA_HOME in Windows 10
In this tutorial I will show you how to set JAVA_HOME as environment variable in Windows 10 operating system. (more…)
Introduction to JavaBeans and its components
This tutorial explains the basics of JavaBeans, its components and how JavaBeans are helpful. (more…)
How to Install and Configure Tomcat 8
Apache Tomcat is the most common and popular java-based web container available today. In this tutorial I will show you…
How to Deploy and Undeploy Applications in Tomcat
In this tutorial I will show you how to deploy and undeploy Java EE web applications in Apache Tomcat using…
Run Tomcat from Eclipse
In this tutorial I will show you how to set up and run Apache Tomcat 8 from Eclipse IDE (more…)
Introduction to Docker and Docker containers in Java
In short, Docker is a tool that allows you to build, deploy and run applications easily by the usage of so-called…
Java Servlet Example
In this tutorial I will show you how to create Servlets and deploy them in Apache Tomcat 8 (more…)
Java Servlet POST Example
This example demonstrates how to use Servlet's doPost() method to handle POST requests (more…)
Servlet Request Info Example
In this tutorial I will show you how to retrieve various data from a Servlet Request object, like headers, parameters,…
Servlet Annotation Example
This example demonstrates the usage of annotations in order to configure Servlets. (more…)
Configure Java Web Applications with Init Parameters
This example demonstrates the usage of init parameters to configure Java web applications (more…)
Java Servlet File Upload
This example demonstrates how to upload files with Java Servlet (more…)
Java JSP Example
This example demonstrates how to create a simple JSP page (more…)
Glassfish Enable Secure Admin
In this tutorial I will show you how to enable secure admin of Glassfish or Payara, so you can access…
How to Configure Glassfish 4 with MySQL
This article explains how to setup and configure MySQL database with Glassfish Application Server (more…)
Java File Upload REST service
In this tutorial I will explain how to build Java REST web-service to upload files from any client over HTTP.…
Java WebSockets Tutorial with Glassfish and Jetty
In this tutorial I will show you how to make a simple chat application running on Glassfish 4. I will…
Glassfish Form Based Authentication Example
In this tutorial I will show you how to use the build-in Glassfish authentication mechanisms to create web based applications with…
Implementing Controllers in Spring
Controllers' main purposes in Spring are intercepting incoming http requests, sends data to Model for processing and finally gets processed…
PathVariable annotation in Spring
Just like @RequestParam, @PathVariable annotation is used to extract data from HTTP request . However, they differ slightly. The difference…
RequestBody annotation in Spring
The @RequestBody annotation can be used for handling web requests. More specifically, it is used to bind a method parameter…
RequestParam annotation in Spring
The RequestParam annotation is used when we want to read web request parameters in our controller class. In other words, the front…
Interceptors in Spring
In Spring, Interceptors, as the name suggests, intercept we requests through implementing HandlerInterceptor interface. It provides us with methods that allow us to…
IOC in Spring
A famous example of explaining the Inversion of Control (IOC) concept is the Holywood principle which states "Dont' call us,…
Java Spring IoC Container Example
In a nutshell, the IoC container is responsible for instantiating/creating and configuring an object and assembling the dependencies between objects.…
Dispatcher servlet in Spring
The dispatcher servlet is the most important component in the Spring Web MVC. Why is the dispatcher servlet the most…
Dependency Injection in Spring Example
In this tutorial you are going to learn what Dependency Injection in Spring is, how it works and how you…
Implementing Spring MVC Controllers
This tutorial describes different ways to implement Spring MVC Controllers and gives examples. (more…)
Introduction to Spring ORM
In this tutorial, you are going to learn what Spring ORM is and how to use it. What is Spring…
What is DAO and how to use it
Before I jump into implementing the classes, let's first understand what DAO is. If you already know what DAO is,…
How to unit test DAO components
In this tutorial you are going to learn how to create unit tests for DAOs. As a prerequisite, you fundamental…
How to perform unit testing for Controllers and Services
As you may be well aware, testing is very important. In this tutorial therefore, you will learn how to do…
How to build Single Page Application with Java EE and Angular
This article describes how to build our own Single Page Application using Angular and Java EE (more…)
Installing and configuring MySQL database and server for Spring usage
In the end of this tutorial, you will have installed the right MySQL products needed to develop applications in Spring.…
How to handle Login authentication in Spring
In this article, you are going to learn how to use Spring Security to achieve a login authentication functionality. The…
Introduction to Spring Security and how to Set it up
In this tutorial you are going to learn how to secure your web application using the Spring Security including user…
How to create RESTful web services with Spring
When we are dealing with RESTful web services, we need to be using @RestController annotation which basically represents the @Controller…
CSRF Protection in Spring
In this tutorial you will learn how to protect your application against CSRF. What is CSRF? If you already know…
What is OAuth2-based authentication and authorization in Spring
OAuth2 allows third-party applications to receive a limited access to an HTTP service which is either on behalf of a…
Introduction to Spring Boot
In this tutorial you are going to learn what Spring Boot is and how you can start using it. Prerequisites…
Introduction to MVC Framework in Spring
MVC stands for Model-View-Controller and Spring supports it. The great thing about the MVC pattern is that it separates different…
Introduction to JDBC in Spring
In this tutorial you are going to learn what the JDBC module is and hopefully you will be able to…
How to dockerize a Spring application
In this tutorial, you are going to learn what is Docker and how we can use it to Dockerize a Spring application.…
Autowired Annotation in Spring
@Autowired annotation is a relatively new style of implementing a Dependency Injection. It allows you to inject other beans into…
Core concepts and Advice Types in AOP in Spring
If you are familiar with Spring, you've probably heard of Aspect Oriented Programming (AOP). That's one of the main components…
Introduction to Spring Bean
In this tutorial you are going to learn what Sping Bean is and how to use it. What is Spring…
Install and configure Android Studio
This tutorial explains and guides you how to install and configure Android Studio in Windows. (more…)
Connect Android device to Android Studio
This tutorial explains how to connect your Android device to Android Studio with step by step instructions. (more…)
Introduction to Android, activities, intents, services, layouts
This tutorial will teach you some basics of Android, so you can make your first Android app easily. (more…)
Creating a simple Android app
This tutorial explains how to create a simple Android app in Android Studio. (more…)
Running and debugging Android applications
In the previous tutorial you learned how to create a simple Android app. This tutorial will explain how to run…
Run Android application on virtual device
This tutorial explains how to configure virtual device and run your application on Android virtual device. (more…)
Android activity example
This tutorial explains what is activity in Android, its life cycle and example. (more…)
Android intent example
This tutorial explains Android intent, its types and methods with examples. (more…)
Android Service Example
This tutorial explains services in Android, its life cycle and gives example of how to create a service. (more…)
Android Linear Layout Example
In previous tutorials you have learned about Android intent, services and activities. This and coming few tutorials explain about different…
Android Relative Layout Example
This tutorial explains relative layout in Android with example. (more…)
Android Web View Layout Example
In previous tutorials we have learnt linear and relative layout in Android, this tutorial explains web view layout with example.…
Android List View Example
You have learned many other layouts of Android, this tutorial explains list view in android with example. (more…)
Android Grid View Example
Android grid view is one of most used layout in many applications. This tutorial explains grid view layout with examples.…
Android ListView with ListAdapter Example
In the previous tutorial we learned about List View layout with a simple example. This tutorial explains list adapter which…
Android SQLite Database Introduction
This article is an introduction to SQLite database classes and methods. It is a pre-sequal to the complete Android SQLite…
Android SQLite Database Example
Previous tutorial gives an introduction to SQLite Database in Android. This tutorial explains all CRUD (Create, Retrieve, Update, Delete) functions with…
Animations with Android tutorial
This tutorial explains what animation is and how to use animations in your Android application with the help of an…
Notifications in Android
Notifications in Android applications are very useful. This tutorial explains how to set notification in your application with the help…
Event Handing in Android
In the previous tutorials you have learned about activities, intents and other. This tutorial explains event handling in Android with…
How To Send Email With Attachments In Android
In this tutorial you will learn about how to send programmatically emails in Android and how to attach files, images…
Choose your JAVA IDE: Eclipse, NetBeans, and IntelliJ IDEA
In the Java world, there are a lot of integrated development environment or IDE which is considered as a crucial…
Java S3 Example
In this tutorial I will explain how to use Amazon's S3 storage with the Java API provided by Amazon. The…
How to Configure Apache for Multiple Sites on Ubuntu
In this tutorial I will show you how to configure a single Apache 2 web server to run multiple websites…
How to Override Out Of the Box (OOTB) Modules in Liferay DXP
This blog covers detailed information about creation of Fragment in Liferay DXP and how to execute required overriding. (more…)
Simple Git Tutorial
In this tutorial you will learn the very basic Git commands, allowing you run Git in just a few minutes. (more…)
Capture Network Packages with Java
This example demonstrates how to capture network packages with pcap and Java. (more…)
Selenium Java Tutorial
This tutorial will explain how to run the Selenium WebDriver with Java (more…)
Run Eclipse with Specific Workspace
Splitting your work in different workspaces is a good practice if you maintain a large number of projects. E.g. you…
Install SVN in Eclipse
Eclipse does not support SVN repository browsing by default. Fortunately there are several plugins which makes this possible. (more…)
How to Run NodeJS Server
On this page I will show you how to set-up and run a Node.js webserver to host a static web…
How to use the MySQL connector in Java
Before testing the MySQL connection from a Java program, we'll need to add the MySQL JDBC library to the classpath. …
SQL Inner Join Example
This article explains SQL INNER JOIN syntax and gives an example on how to use INNER JOIN (more…)
SQL Left Join Example
This article explains SQL LEFT JOIN syntax and gives an example on how to use LEFT JOIN (more…)
SQL Right Join Example
This article explains SQL RIGHT JOIN syntax and gives an example on how to use RIGHT JOIN (more…)
SQL Outer Join Example
This article explains SQL OUTER JOIN syntax and gives an example on how to use OUTER JOIN (more…)
Raspberry Pi 3 Specs
Good news for all Raspberry Pi fans - Raspberry Pi 3 Model B is now officially on sale (more…)
Install Raspbian to SD Card
This tutorial will show you how to install Raspbian OS to an SD Card (more…)
Raspberry Pi First Start
This tutorial explains how to prepare your Raspberry Pi for the first start, connecting peripherals and boot Raspbian for the…
Connect Remotely to Raspberry Pi
In this tutorial I will show you how to connect remotely to your Raspberry Pi from your PC or Mac.…
Establishing Raspberry Pi Remote Desktop Connection
Previously, we’ve covered how to access the Raspberry Pi through SSH. (more…)
Raspberry Pi Java Tutorial
In this tutorial I will show you how to flash a LED light with Raspberry Pi and Java. This will be a…
Raspberry Pi Dim LED with PWM and Java
In this tutorial I will show you how to control the voltage using PWM in order to dim a LED.…
Raspberry Pi Control Motor Speed
In this tutorial I will show you how to control the speed of a DC motor with your Raspberry Pi.…
Raspberry Pi Control DC Motor Speed and Direction with Java
In this tutorial I will show you how to control the direction and speed of DC motors with Raspberry Pi and…
Spring vs. Java EE
At first, it was Java, and there was Java Community Process, the procedure in accordance to which all revisions take…
What awaits you at the interview or 10 tricky questions of the recruiter
Be prepared for your next job interview with the ultimate "Job Interview Survivor Guide" (more…)
8 New Features in Java 10 That You Should Know About
Java is a very popular language pertaining to its amazing features. It dates 20 years back but still qualifies as…
Understanding Microservices
Microservices are not a completely new concept. In the past, there have been many attempts, such as EJBs, Remote procedure calls (RPC), and implementations of…
Secure Coding Practices in Java – Challenges and Vulnerabilities
Some Stack Overflow recommendations on Java secure coding must not be trusted 100%. The future of Java security development is…