Latest Articles

Java EE HTML5 WebSockets Encoder and Decoder example

10 September 2013

In this tutorial we will implement a Java EE ServerEndpoint message Encoder and Decoder in order to convert HTML5 websocket messages into Java objects (and also the reverse operation of converting Java objects into ready to be sent websocket messages).

As we have seen in previous examples a ServerEndpoint is the Java EE implementation of the server-side HTML5 websocket component: Java EE HTML5 WebSocket exampleJava EE HTML5 WebSockets with multiple ... Read more

html5 io java java-ee web websockets

Java EE HTML5 WebSockets with multiple clients example

22 August 2013

In this tutorial we will implement a message broadcast sample application using only HTML5 websockets. The server-side will be implemented with Java EE ServerEndpoint.

In the previous tutorial - Java EE HTML5 WebSocket example - we have implemented a simple Java EE WebSockets enabled application where the client sent a simple message to the server over a websocket a... Read more

html5 io java java-ee web websockets

Java EE HTML5 WebSocket example

12 August 2013

In this tutorial we will implement an HTML5 websocket resorting to the Java EE websocket implementation (ServerEndpoint).

The HTML5 specification brought the capability for web browsers to establish full-duplex TCP connections with websocket compliant servers.In other words, browsers are now able to establish a connectio... Read more

html5 io java java-ee web websockets

Java custom serialization example

03 February 2013

In this tutorial you will learn how to override the default Java serialization mechanism and also how to provide a custom serialization implementation.

By implementing the Serializable interface we are defining our class to be serializable by the JVM (we have already seen basic serialization before at Java Serializable example). This time we will cov... Read more

io java serialization

Java transient modifier example

22 January 2013

In this tutorial you will learn how to use the transient keyword as a property modifier in Java.

The transient keyword may be used as a property modifier in Java and is directly related with serialization. In short the properties declared as transient are not serialized by the default serializati... Read more

io java serialization

Java Externalizable example

17 January 2013

In this tutorial you will learn how to implement a custom serialization mechanism by implementing the Externalizable interface.

The Externalizable interface provides the necessary means for implementing a custom serialization mechanism. Implementing the Externalizable interface means that we must override some of its methods, ... Read more

io java serialization

Java Serializable example

14 January 2013

In this tutorial you will learn how to serialize a Java object to the file system and read it afterwards.

This tutorial will demonstrate how to serialize a Java object to the file system. After serialization we will read it again into memory. Environment: Ubuntu 12.04 JDK 1.7.0.09 Read more

io java serialization

How to connect to an Android server socket in the emulator

22 December 2012

In this tutorial you will learn how to connect to a server socket that is running in the Android emulator.

This tutorial will not focus on how to create Android activities or applications from scratch. It will assume that you already have a basic understanding about Android application development and will... Read more

android io java

About the author

Gonçalo Marques is a Software Engineer with several years of experience in software development and architecture definition. During this period his main focus was delivering software solutions in banking, telecommunications and governmental areas. He created the Bytes Lounge website with one ultimate goal: share his knowledge with the software development community. His main area of expertise is Java and open source.

GitHub profile: https://github.com/gonmarques

He is also the author of the WiFi File Browser Android application: