Java,Java,Java

We at Chandigarh celebrated Java's 20th birthday on 23rd May. This was the first time that @ChdJUG had celebrated this event. It is very enjoyable and memorable event. We had enjoyed a lot and cut a special cake on this occasion.  We hope to increase our community at Chandigarh and next year I am sure it will be bigger one :) You can follow me on Twitter @vinodkashyap and Chandigarh JUG @ChdJUG for more updates. 

Web services are very common these days as everything or most of the implementation is now API based. Every social network is providing API for fetching their data. Like if you take a case of TWITTER, it provides it's API to fetch different data related to user or for analytic. There are 2 types of web services namely: SOAP REST SOAP is based on WSDL and return data in XML format. But I will not talk about it here. I will be discussing about REST , an acronym for RE presentational S tate T ransfer methods. RESTful web services are very simple to learn and implement. They are basically stateless. It is based on HTTP URI and everything is implemented using URL. In this post I will explain about the four methods that are used with REST. POST PUT GET DELETE Let's dive deep into each of these methods of the REST. RESTful Java Web Services: Master Core REST Concepts and Create RESTful Web Services in Java POST It is used for creating a new entity. It is basically us

Sometimes we want to change the username and password for the SVN access in Eclipse or Spring Tools Suite. But it does not asks for it. There is a very easy way of doing this. You can easily find out the solution on google :). I am writing here again to save to my memory. The solution is for Windows platform and tried and tested on Windows 7.  Here is the path where you need to delete one folder to do the same.  1. First close Eclipse/STS if your had open it. Some times without closing first it will not work.  2. Go to C:\Users\<username>\AppData\Roaming\Subversion\auth  3. Delete svn.simple folder  4. That's it. Now when you restart your IDE and go to SVN it will again ask you for credentials.  Note : AppData folder is hidden and not viewed by default. To make it visible follow below steps:  1. C:\Users\<username>  2. Go to menu Tools --> Folder Options --> View Tab --> Click Show hidden files, folders and drives under Hidden Files and Folders.  Happy Codin

This is one of my favorite Java conferences in India that everyone wants attend for sure. Most of the time it is based on the Java , but this time it is going far behind with IoT, Big Data, Cloud and many more interseting sessions as well. Sessions are great and speakers too. Conference is great and people loved to join it. You will learn a lot of new things and get to know about the industry. It enhances your vision to view the future. You will get a chance to meet the great brains behind the great innovations in the industry. This conference is organized by India's first " Java Champion Harshak Oak ". He is very nice and humble guy. I had meet him before and he always answer your queries without any hesitation and a smile on his face :) Visit the conference website: http://pune15.indicthreads.com/ See the sessions here: http://pune15.indicthreads.com/category/sessions/ See the speakers here: http://pune15.indicthreads.com/category/speakers/ I am going with 2 of m

As the name suggest, Singleton Pattern restricts to the creation of one and only one object of a class. This is very useful whenever we want to restrict the creation of an object to single instance . This is very small and sweet type pattern that is used in many cases. Let's take an example and see how it is used in the code public class SingleObject { private static SingleObject singleObject; private SingleObject() { } public static SingleObject createInstance() { if (singleObject == null) { singleObject = new SingleObject(); } return singleObject; } } Line by line explanation Line 2 : creates private instance of the class Line 4 : constructor is private, so that no outer class can create object of this class Line 7 : creating a static method to get an instance of the class. We have defined method as static so that we don't need to create a object to call this method. Since it is static we can call this method by name of the class i.e. SingleO

Its a long time I have written about any new things in Java. But few days back I had started working on starting a JUG in my local city Chandigarh. I had seen people in Chandigarh specially freshers not able to grasp a good knowledge of the Java and related technologies. They even don't know about the latest technologies and what is happening in the world of Java. So I finally thought of starting a JUG namely Chandigarh Java User Group. I want to organize a JUG meet as soon as possible in the city. So anyone can join and start working on that side. I am very much influenced by @HarshakOak who is a Java Champion and organizes many Java events like the indicThreads. I had gone to attend those meetups some time. There you will get a lot of knowledge about what is happening around the world in the field of Java Some of you wanted know about the procedure of joining the JUG. its pretty simple. Join java.net and then go to Chandigarh Java User Group and join it. There is also a

Sometimes we face a problem while opening forms. There are some fields in the form that are always pre-filled whenever that form is opened. This is because of the auto-fill feature of the browser. To solve that simple put the autocomplete="off" in form tag like below: <form name="frmUser" method="post" action="test" autocomplete="off"> Name : <input type="text" name="name" /> </form> According to the mozilla https://developer.mozilla.org/en/How_to_Turn_Off_Form_Autocompletion  this happens because we are using the the two fileds in our form i.e. NAME and ADDRESS.  Like in the above form we have used the label Name . To resolve this issue we can do the following: Simply include the name using span as below <form name="frmUser" method="post" action="test" autocomplete="off"> < Name : <input type="text" name="abc"