Some Random Stuff

I have following JDKs installed 1) JDK7 64 bit 2) JDK6 64 bit 3) JDK6 32 bit Also I have multiple Eclipse installed. They run on different JVM. For example Eclipse for Blackberry runs on 32 bit JDK and Eclipse for Android runs on 64 bit JDK. You can put only one JDK to PATH in Environment variable or JAVA_HOME environment variable. To configure Eclipse to use specific JVM you have to modify configuration file for your eclipse (usually eclipse.ini). Add following lines just before the line which says “-vmargs”. -vm D:\TOOLS\Java\JDK6-32bit\bin\javaw.exe {this should be the path to your desired JDK bin\javaw.exe }

This blog posts contain excerpts from advice given by Ed Hewitt on IndependentTraveler.com  . View original article here What hostels and guesthouses are great for is meeting other folks doing the same thing that you are -- true fellow travelers. But you don't have to commit to them unrelentingly; your choice of lodging is just another tool in your solo traveler bag. When in need of comfort, safety and convenience, choose a reputable hotel; when in need of companionship, think about hostels and other alternative lodging options. Don't feel obligated to stay in hostels. On these nights, take it easy on yourself; you might stay near the airport or train station, or splurge on a well-known hotel, or take a cab when you might otherwise save money by taking public transit. Don't get too ambitious at the beginning or end of a trip. Having no money in your pocket and no way to get any is a problem for any traveler, but even more so when traveling solo.  Don...

Recently I worked on a project that involved integrating with social networking and jobs websites like Elance. These days almost all major services that allow applications to access users' data, perform authorization/authentication using OAuth1.0 or OAuth2. OAuth2 compared to OAuth1 is very easy to implement. OAuth1 involves generating nonce,timestamp,signaturebase and signing the request with any algorithm like HMAC-SHA1 and appending data to query string of URL and passing in Authorization header of HTTP. OAuth2 removed all these requirements. Following is OAuth2 process in a nutshell 1) Redirect user to Authorization url passing client_id and redirect_url in query parameters 2) If user authenticates successfully through service provider it will redirect user to the redirect_url passed with authorization access code in query parameters. 3) After getting authorization access code you exchange this to receive access token. You make a POST HTTP request to a URL passing client_id ...

Prior to Servlets 3.0 developers have to use 3rd party libraries to process complex multipart request that is sent when file is uploaded by user. Starting from Servlets 3.0 JEE provides a better way to handle file uploads (multipart requests) without using any 3rd party library. Making your Servlet ready to handle Multipart requests All you have to do is to add  @MultipartConfig annotation on your servlet class and it is ready to handle Multipart requests. @MultipartConfig   public class FileUploadServlet extends HttpServlet { Our example HTML form <form method="POST" enctype=" multipart/form-data "> <input type="file" name="ufile" /> <input type="submit" value="Submit" /> </form> Handling the POST in processRequest method of Servlet protected void processRequest (HttpServletRequest request,         HttpServletResponse response)         throws ServletException, IOException { Gettin...

There are times when you want to perform query on only date part of the column that has type DateTime in database. Entity framework does not support DateTime.Date property but provides a helper class EntityFunctions . EntityFunctions has a method TruncateTime that can be called in Linq2Entities query and truncates the time part from datetime. Here is how to use it using (AccountEntities dal = new AccountEntities ()) {               DateTime dtStart=DateTime.Now.AddDays(-20).Date;               DateTime dtEnd=DateTime.Now.Date;     transactions = (from t in dal.Transactions                             where                             EntityFunctions.TruncateTime (t.TransactionDate.Value)                     ...

There are many apps that allow you to refresh content by simply pulling down the list. I had a similar requirement in one of my projects. I decided to write a blog post that how easily I implemented this feature. For simplicity I will remove code of setting Adapter to ListView etc.I will only show code to detect pull down on ListView First lets see the layout of my screen <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical" >       <!-- this linear layout will contain our content which we will show -->     <!-- to user while refreshing -->     <LinearLayout android:id="@+id/layoutRefresh"         android:orientation="vertical"         android:layout_height="wrap_content"...

I decided to write a minimal multithreaded TCP based server as a blog post. Following class can serve as a skeleton for any small or large scale multithreaded TCP socket server. It do not contain much error handling , it is only to give an idea that how multithreaded server works and how it can process multiple clients using threading. using System; using System.Text; using System.Net; using System.Net.Sockets; using System.Threading; using System.Collections.Generic; namespace RandomStuffMine { public class MTServer {     public int Port{get;set;}     public Socket ServerSocket{get;set;}     private List<Client> Clients=new List<Client>();     private bool runServer=true;     public MTServer(int port)     {         Port=port;         ServerSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);     }   ...