Whats new in Java 7 – try-with-resource construct in Project Coin


In our previous post we looked at different features added as part of Project Coin, in this post we will look at another language construct added as part of Java 7 and Project Coin in particular. It is the try-with-resource construct also called as Automatic Resource Management. Before getting into the details of the construct, […]

Using JsonSlurper Groovy API from Java to parse JSON


We have seen here on how to parse JSON in Java using Gson and here on how to parse JSON in Groovy. I also touched upon in brief about Groovy here. The beauty of these JVM languages is that one can invoke these APIs from Java, the only requirement is that you need to have […]

What’s new in Java 7- Features as part of Project Coin


As part of the Project Coin, there were quite a few language enhancements were added to the Language. The last time Java language changed was in the Java 5 release when Generics were added. The changes in introduced in the Java 7 were welcomed by java community around the world. This was seen as a stepping […]

Invoking RESTful Web Service using API in java.net and GSON


In our previous post, we wrote about parsing JSON using Java and GSON library. Moving further, in this article we will look at how to use classes in java.net package to invoke a RESTful Web Service and then parse the JSON response using GSON library. For this we make use of the Twitter REST API […]

Parsing JSON using Groovy


In our previous post we saw how we used Gson API to parse the Json using Java. Not spending too much time on the introduction, I would want to straight away dive into the same parsing which can be done using Groovy language. Groovy is a scripting language which runs on the JVM. It can […]

Parsing JSON using Java and GSON library


In my previous post here, I gave a brief overview of JavaScript Object Notation (JSON). In this post I would go a bit further and show how one can parse the JSON documents into Java objects using the GSON library. The JSON data for this tutorial was obtained from: “https://api.twitter.com/1/users/show.json?screen_name=” where screen_name was TwitterAPI and […]

What is JavaScript Object Notation (JSON)?


A quick JSON search on Google would yield plenty of results and more specifically the JSON homepage. None the less we wanted to share something brief and something good about JSON. Lot of you are familiar with XML and XML had been the defacto data-transfer language in the area of RESTful webservices, but off late […]

Download file from HTTP & HTTPS server using Java


In the earlier articles, JavaBeat has published many articles on uploading and downloding of files using the Java programming. Upload and Download is essential utility in the programming world because every server must have the feature to upload and download the files by the user or downlod the reports incase of the enterprise applications. The […]

Generate XSD from XML files


XSD is the XML schema definition for defining the XML elements in the XML document. Prior to the XML schemas, DTDs are used which are not XML document and has the limitations. XSD is most popular because of the extensibility and the validations for the XML files. You can set the validation rules for the […]

JAXB Exception : nor any of its super class is known to this context


When you are working with the JAXB objects, there are some times you would encounter the exception saying the “nor any of its super class is known to this context”. The reason for this error could be many reasons it depends on the environment you are working. The simple solution for fixing the problem is […]