Archive for the ‘Tutorials’ Category

Page 1 of 3123




How to migrate preferences of one Eclipse workspace to another?

Posted on August 29th, 2011 in Java, Tutorials | 8 Comments »

When you switch to a new workspace for the same project in Eclipse you generally have a lot of work to do before you start import or creating projects. This work majorly involves setting of preferences and other settings to your new workspace. This sometimes becomes painful and tiresome especially if you have a lot or project specific preferences to be applied to the workspace or have customized many of the default ones.

Also, it is many a times, error prone since you might forget some preferences and end up factoring why your code is not behaving the same way as it used to in your earlier workspace.

The secret to make this easier is to find out where does eclipse store this settings and thankfully it is easy enough. Eclipse stores all preferences in text format, properly separated for each individual plugin. So, migrating the settings from one workspace to another is just simple, copy-paste the setting files.

The location where the preferences are kept is :
<workspace_location>\.metadata\.plugins\ org.eclipse.core.runtime\.settings

eclipse_workspace_preferences

Check the folder and try to see what is within each file and you will see all your plugin settings in it.

So what you would need to do is to copy org.eclipse.core.runtime folder and paste it in your other workspace inside \.metadata\.plugins. Do not copy any other folder or else it may lead to some unusual workspace behavior.

If you want to transfer only the preference for a particular plugin then you just need to copy that individual file alone, from within this folder.

Action Steps:

  • Switch your existing workspace to a temporary workspace.
  • Close eclipse
  • Copy the above folder and start eclipse with the temporary workspace
  • Now check all your earlier settings will be reflected

Simple, isn’t it? Let me know if it worked for you.

The Great Hibernate Tutorial – a great jump start for beginners

Posted on December 30th, 2008 in Featured, Java EE, Tutorials | 47 Comments »

Hibernate has become the de-facto ORM (Object Relational Mapping) framework for most of the organizations today. It provides a very simple framework to overcome the cumbersome techniques involved with core JDBC implementations. Whenever there is a project based on database intrinsic activities it is advisable to use Hibernate than do JDBC coding. It saves a huge amount of time revolving around unnecessary chores.

Having said that, the major question which strikes anyone who does majorly JDBC is that how does a Hibernate DAO layer look like. Without looking at a practical implementation one cannot be easily convinced to work on it. This is the only compelling reason why I intended to write The Great Hibernate Tutorial.

This tutorial is aimed at those developers who want to Read the rest of this entry »

3 Easy Steps to Install MySQL on Windows XP

Posted on June 9th, 2008 in Tutorials, Windows | 70 Comments »

This article needed to be written from a long time and since it was not, I almost suffered the same hiccups during the installing of MySQL on Windows XP. Every single time I had to search the internet for the solutions which I often forgot over a period of time.

logo_mysql_sun

So today without any procrastination, I intend to put down the simplest of the steps to configure and run MySQL on Windows XP in the quickest of the time. First and foremost, as I always tend to follow a course is, break down the task into 3 steps. They are:

Step 1: Getting the software

Download the latest version of MySQL from the community site. Unpack it into your desired folder. It is always a good practice to download the zipped archive of MySQL binary distribution since using the one click installer, you might sometimes lose the power of configuration manually.

Its also a better way to understand configuring manually since if you switch to a Unix based environment later on, you will have to carry out a similar procedure and there is usually no one click installer in such environments.

I unpacked MySQL in C:\Program Files\mysql-5.0.45-win32

Step 2 : Configuring the environment

While configuring in the Windows environment you have to do two things. One, putting a file having a name my.ini in the Windows folder of the operating system. Two, setting the path in your system environment variable. Here’s what you have to do: Read the rest of this entry »

Create Beautiful Collages Out Of Your Photos

Posted on May 28th, 2008 in Featured, Google, Tutorials, Utilities | 8 Comments »

Did you always think about what creative stuff you can do with your photos? Well, I do most of the times and end up editing some of my most favorite ones and putting in some artistic touch. I always feel that, enriching the photos gives them a whole new dimension to look from. It might be either making it more attractive, more lovable or to enliven the sentiments you attached to them from a long time.

Whatever the reason may be, editing a photograph is no layman’s job. Sometime people give up half way through when they do not find the required results. I recently found a something which might make your spirit rise higher when you will notice the results you get out of it. The name of the tool is Picasa. Its a tool from Google. I am sure you must have used it many time to upload your photos to the online Picasaweb. But did you ever try making collages from it. Picasa can generate some really amazing collages out of your precious photos and make them really gift worthy or send it amongst friends as a memoir.

Picassa_Logo

So here’s how you can make collages out of your photos: Read the rest of this entry »

The Technique of Virtual Deployment in Tomcat

Posted on April 26th, 2008 in Java EE, Tutorials | 9 Comments »

The most common ways of deploying a web application to Tomcat are either straightaway copy the exploded war file structure to $CATALINA_HOME/webapps or to do the more cumbersome task of compiling the web application to a war file and then using the tomcat manager to upload it. Both ways are the most used ones. But did you know there are other ways to deploy a web application to Tomcat. If you consider production environments, then applications are deployed using the deployment commands, if at all Tomcat is used. They can be made more simpler using the ant tasks.

But I am not going to discuss the production environment over here. The topic under scrutiny is how would you deploy your web application virtually to Tomcat. For that we have to know what is virtual deployment and learn about its advantages.

What is virtual deployment?

Virtual deployment in simple terms means deploying a web application from a different physical location. In this case, you are not required to put the web application in its exploded war structure to the webapps directory. Most of the beginners, tend to develop their web applications directly in the webapps directory itself. This technique might prove the most simplest and the quickest but it is the most hazardous. This is because the moment you Undeploy the web application from Tomcat’s manager the web application gets Read the rest of this entry »

Implementing Websites For Internationalization

Posted on March 2nd, 2008 in Java EE, Tutorials | 6 Comments »

Most business in today’s open market are demanding their websites & web application to have multilingual support. This is in order to attract non-English speaking audiences to increase their customer base and make people comfortable using the application in their native language. But for this, it would require an existing business application to be customized to support native locale. The process of producing an application that can be localized for a particular country without any changes to the program code is called Internationalization.

Internationalization

Following are the list of things one needs to take care while making an application to implement Internationalization.

1. Producing Content in Unicode

You need to make sure that all files which contain the multilingual content are in Unicode format. By default most text editors will store your file in ASCII which does not support other language characters. So after saving any content in ASCII format and loading it, your browser might not be able to display correct text in native language. Here you need to convert the file from ASCII to UTF format.

For example, the steps required for doing this if you are using Read the rest of this entry »

The Power of JavaScript Favelets

Posted on January 27th, 2008 in Featured, JavaScript, Tutorials | 5 Comments »

Favelets are bookmarks which contain JavaScript code. The code is used in many forms either for fun purposes or for reducing routine tasks. In present times, you won’t require favelets much since browser’s have got upgraded to include plugins or come with inbuilt features. But still, if you are stuck with a browser which does not have such features or plugin facilities then favelets can be your saviour.

Favelet

A couple of days ago I was in such a situation. I am addicted to Firefox and already have a lot of plugins which increase my productivity. But in those couple of days, I was left with the dreadful Internet Explorer 6.0. Life became more difficult for me when I found myself opening up the Google homepage every time I wanted to search something. I did not have the rights to download the Google toolbar. But since I knew about Favelets I quickly made some and later found that even getting stuck with IE 6.0 did not matter any more.

How to make a favelet? Read the rest of this entry »

Page 1 of 3123