General Concepts about Object-Oriented Programming

VV

The programming style that we usually call object-oriented programming (OOP) has appeared relatively recently in the history of programming languages. This is a particular and very convenient style for many situations. It was designed to overcome the limits of structured programming based mainly on the widespread use of procedures, functions, pointers or other more or less developed data types.

Although structured programming is very practical for small software systems or reduced non-graphic applications, it should be avoided when dealing with large applications that use graphic elements where object-oriented programming is recommended. Object orientation means organizing software resources as a collection of distinct and discrete objects, which includes both data structures and their processing functions. This organization is an extension of structured programming in which the data structures and processing functions are only loosely connected. All items have their own identity and are perfectly distinct.

An object is defined as an abstract concept, a specific and useful element for any application. Objects serve two specific purposes:

– they provide a better understanding of the problem to be solved;

– they provide a base design for implementation.

A class of objects encapsulates a certain number of objects with similar properties. This similarity refers to both the description (data and attributes) and the behavior (functions or methods). Attributes are unique features within an object class. Each attribute receives a certain value which can be modified during the objects life cycle. Two or more objects can have the same or different values for the same attribute.

Methods or operations are processing functions applied to objects of a certain class. All objects within a class admit the same set of methods, methods which in return may receive any number of additional parameters. In order to apply various methods to an object, it has to be created (defined). Defining an object is called instantiation. Once an object has fulfilled its mission it is removed.

Abstraction is a fundamental human trait that allows us to build models and thus cope with complexity. In every field of human activity, project approach is based on building a model for a better understanding of the problem to solve. Software engineering makes no exception. Through abstraction the essential key aspects are isolated from the non-essential ones. Therefore, each problem might have several adequate models.

In the software engineering industry, structured programming has made a big step forward defining three perspectives needed in order to properly address any application. These perspectives, also known as models, are: the static model, the dynamic model and the functional model.

There are currently several object-oriented methodologies used for analysis, design and implementation of software resources. One of these modeling methodology is the OMT (Object Modeling Technique) methodology. This method of modeling involves the planning of the various development stages and a graphical representation of objects and their relationships.

Resolving Database recovery failed with error -1216 Error in Exchange Server

Training

There are some situations, such as virus infection, improper system shutdown, application malfunction, and missing database objects, where the Exchange Server Database (EDB file) may get damaged and all of the stored data become inaccessible. To handle such situations, Exchange Server includes a repair utility called Eseutil. It can detect errors, repair them and defragment the hard drive. But this utility can not handle the situation in case of severe damage and you encounter data loss situations. At this point, you are required to go for Exchange Server Recovery solutions. Sometimes when you attempt to repair a damaged Exchange Server database using Eseutil tool, the process might fail and you may find the following entries in the Application Event Log of Exchange Server:

Event Type: InformationEvent Source: ESE Event Category: Logging/Recovery Event ID: 301 Date: 29-08-2003 Time: 13:44:26 User: N/A Computer: SNUCKERSERVER Description: Information Store (2040) 8f47d891-b071-466b-b70d-ae123f886ea6: The database engine has begun replaying logfile C:Program FilesExchsrvrmdbdataE00.log. For more information, click .

And

Event Type: Error Event Source: ESE Event Category: Logging/Recovery Event ID: 494 Date: 29-08-2003 Time: 13:44:27 User: N/A Computer: SNUCKERSERVER Description: Information Store (2040) Database recovery failed with error -1216 because it encountered references to a database,’C:Program FilesExchsrvrmdbdatapriv1.edb’, which is no longer present. The database was not brought to a consistent state efore it was removed (or possibly moved or renamed). The database engine will not permit recovery to complete for this instance until the missing database is re-instated. If the database is truly no longer available and no longer required, please contact PSS for further instructions regarding the steps required in order to allow recovery to proceed without this database.For more information, click .

This situation occurs generally in case of serious damage to Exchange Server database, which can not be repaired by Eseutil.In such circumstances, you need to repair and restore the database using third party Exchange Server Repair solutions.

These solutions are available in the form of easy to use applications, known as Exchange Server Recovery software. These software apply efficient scanning algorithms on the corrupted EDB file to retrieve all of its damaged or corrupted objects such as emails, notes, contacts, tasks and so forth. These tools have interactive and simple graphical user interface to provide easy, quick and absolute recovery.

Microsoft Exchange Recovery tool is the most effective and advanced tool to effectively retrieve all of the inaccessible data from EDB file. It works well with Exchange Server 2003, 2000 and 5.5. This Exchange Recovery software is compatible with Windows 2003, XP, Windows 7 and 2000.

About Author:

Axel Culver has passion for writing Technical article. He is right now writing articles related to Product like Exchange Recovery Tool and Exchange Repair Software for Microsoft Exchange Server.He is a professional writer and has written many blogs, article, press releasing and content for many websites.

Java Programming Training Toronto Brampton Canada

KUK

Stepin2IT is one of the fastest growing training organizations inNorth America. We are committed to be the training provider of choice for individuals and organizations alike. We are a growth-oriented, customer-focused, integrated training organization focused on delivering Hands on IT training which believes in Transforming IT education into job skills. Were a conservatively run organization with a laser sharp focus on delivering IT programs rich in content and one that provides a great value addition to your skill set.
This course is customized to impart training in advanced concepts of Java such as Struts, EJB and Hibernate. Java is a technology that aims to simplify the design and implementation of enterprise applications. STEPIN2IT is one of the best institutes for JAVA & J2EE training as most of our students have been easily managed to find placement right after the training. JAVA & J2EE course is designed as per the Industry standard.

COURSE NAME: JAVA (Advanced) Skills Upgrade Program

COURSE CODE: WEB005

COURSE PREREQUISITES: Basics of Java programming, Windows OS and at least 1 programming language, logic building, OOPS concepts or 1-2 years of basic Java programming experience.

COURSE DURATION: 35 Hrs

COURSE FEE: $750 CDN + HST

Course Objectives: The demand of complex & distributed software development requires full scale programming knowledge of the language while following the standards and industry best practices. This program is designed to bring programmers with limited experience up to speed quickly starting with some frequently used concepts in the industry and progressing into more complex & structured programming concepts. Emphasis is on practicing and implementing the language while building a project resulting in learning the concepts and enabling implementation of the same. It is a fast-paced course with hands-on programming and feedback/facilitation from the Instructor enabling easy learning of the subject while gaining valuable insight into the world of Java programming.

This program is for IT professionals and graduates with some experience in programming and logic building. At least 1-2 years of programming background is required. It is OPEN to people wanting to start a career in Java programming (Some pre requisites may be required like college education or Java Beginner course etc.)

This course is for IT professionals with some knowledge of Manual Testing, Developers, Test Analysts, Testers, Automation Developers, Programmer Analysts & Technical Support resources.

Dish Network International Programming Package

KUK

Looking for the best international programming on dish TV? Then you will surely enjoy the extensive range of international programming on Dish Network. These channels bring you the best of international programs in different languages. No matter what is your native language or from which country you belong, you can still find international programming at a language closer to your home. There is a wide array of international channels available with the satellite TV provider. The company is also planning to introduce a few new channels consisting of some of the best quality international entertainment.

At present people from different corners of the world are living in the United States for different purposes like studying, jobs and many more. These people hardly can find time to get in touch with their native land and native people. So dish TV international channels come as a great source of entertainment to them. With these programming packages they can enjoy a wide array of programming in a language they and their native people speak and understand. There is a wide array of such international packages that are dedicated to one or more languages. At present the satellite TV provider has over 180 channels in over 28 languages that are spoken in different parts of the world. If you are a foreigner in the United States you can still keep in touch with the events, rituals and customs of your native land by opting for these dish packages.

Who will want to opt for dish international channels?

The people who are living in the United States away from their native land for different purpose are the prime viewers of the international TV programming. Dish network providers bring them the best satellite TV international packages at unbelievable rates. They can opt for the packages of their choice and can avail a plethora of channels that provide them quality entertainment like movies, sports, news and much more.

The international standard hotels are also a part of the international package clientele. As these hotels welcome foreigner guests everyday they opt for these channels as a part of their guest entertainment facilities. The foreigners often prefer to watch programs in their native language and hence the hotels and other free to guest facilities opt for dish international packages.

What do the international packages offer to you?

There are special international packages for different targeted audience. For example, there are Dish Latino packages for the Mexican and Latin American community. You can also get different packages for Russian people, South Asian people as well as people from Arabia and Middle East. There are programs for Chinese and other Asian people as well.

The international programming in dish network has huge popularity and fan following. Due to this the satellite TV provider is planning to provide a few new international channels. These channels are sure to keep the viewers thoroughly entertained with its highly engaging as well as interesting content throughout the day.

Benefits of Virtual Private Server (VPS Hosting)

T13

If you are serious about your online business, you may wish to take a closer look at VPS hosting. What exactly is VPS? And how does it benefit your business?

VPS is short for Virtual Private Server. A VPS hosting plan gives you complete control over your own hosting account. It’s almost as if you are the owner of a dedicated server. However, a VPS is not the same as having a dedicated server. It is just a virtual segment of the server. In other words, there may be other hosting accounts on the same machine, but these accounts do not impact your VPS account. The virtual segment is created using special software, and the goal here is to allocate dedicated resources to you without having to setup a new machine.

This allows you to enjoy all the benefits of running a private server without having to undertake the costs of setting up a dedicated server. A VPS hosting account may cost you between $50 to $100, depending on the amount of resources allocated to your account. A dedicated hosting account can easily cost you $200 or more each month. So by using a VPS account to host your sites, you enjoy a massive savings of 50% or more upfront. Now let’s take a look at some of the benefits of owning a VPS account.

1) Administrative rights and access.

A VPS account gives you full admin rights. It’s almost as if you are running the server in your own home. You are given virtual access to the root directory of the account. You may then install and configure the server anyway you like. Remember, whatever you do doesn’t affect all the other accounts on the same server (and vice versa). So you are free to pretty much do what you like with the server.

This is important for some webmasters because some software require special components to function properly. But you can’t install third party components in a shared hosting environment. You can, however, buy and install third party components on a VPS account.

2) Cost savings.

Compared to a dedicated server, a VPS hosting account offers immense cost savings. You do not, however, enjoy the same amount of resources that you get with a dedicated server. For this reason, a VPS account is ideal for mid-sized websites. You don’t really need a full-fledged server to run your site, but you do require dedicated resources. In this case, a VPS account is perfect.

3) More reliability.

In shared environment, you never know when an inexperienced webmaster may bring the whole machine down. This happens from time to time because webmasters upload scripts that hog too much resources. If the server goes down, everyone is affected. However, if you are using a VPS account, you don’t have to worry about what the other webmasters are doing. The resources are dedicated to your account and you will not be affected adversely. If reliability is important to you, paying a little more for a VPS account may be worth it.

All You Need to Know Before Considering a Career in Web Programming

P1

When you turn to your computer and take a look at websites and homepages, do you ever wonder who does those things? Ever wonder how they are done and how much work is being done just so you and other internet surfers get to enjoy and appreciate those pages?

The person behind your favorite website is what’s called a web developer or a web expert, and the process of what he or she does to produce the homepage is web programming. He or she creates programs that are based on their client’s specification about how they want their website to be like – colorful, interactive, modern, whatever ideas they come up with. In simple terms, the programmer gives written instructions on what and how to do what needs to be done to the computer, in a way that the computer can understand: codes. It is the programmer’s job to turn website and homepage ideas and concepts into reality. This job is often not very easy to execute, as it requires a lot of time and effort on the programmer’s part, as well as a whole team of people who will be needed to pitch-in to get the job done.

So what skills should one possess to become successful in web programming? This job will have you facing codes and computer language, so you basically will need to learn this in a programming school or college. Aside from the technical aspects that you learn in school when you enroll in programming courses, you’ll need to be really creative and have an active imagination. This comes in handy especially when a client will ask you to execute an idea that has never been translated into codes before.

But web programming is still a growing profession. The stuff learned by programmers five years ago might not be very useful anymore. This is why web experts still continue to enhance their skills throughout the duration of their career, learning about new codes and techniques, updating their knowledge to keep up with the fast-paced changes in technology and computers.

With companies becoming more and more dependent on the internet to keep their businesses afloat, there is no predicting how far in the future web programming will continue to be a lucrative career. While applying directly to companies in need of web experts is the best way to get a well-paid position, working freelance is also lucrative – just make sure you have a reliable time tracking software so you get paid for all the time you spent working on your projects.

Benefits Of Print Server

ZF

Print server is basically a computer or device which is connected to one or more printers and to client computers over a network.It can accept print jobs from the client computers and allocate the jobs to the printers.
Print Server Advantages
Benefits of print server are enlisted as:
Print server lowers the administrative and management workload due to centralizing local and remote printer management. It allows prioritization of print jobs. It is known that priorities can be assigned to print jobs such that more important jobs are printed before those less important.

Print server allows an administrator to manage and control access to each printer. There are three level of printer permissions, print, manage documents and manage printer. Print permission allows a user to print documents, pause, resume, start and cancel his documents. This permission is granted to everyone in the group.

Manage documents permission is assigned by administrator to selected users when required. With this permission, user can control job settings for all documents. Manage printer permission allows the user to pause and restart the printer, share a printer, adjust printer permissions, change printer properties and change spooler settings.

With the use of print server, client computer jobs are quickly spooled to print server as compared to printer. The main point is that while printing large jobs from an own printer, user may have to leave his computer running until printing task gets completed. But with the use of print server, if any job has been spooled to it, then user can shutdown his system.

A system administrator can easily manage printers with the print server. If your own printer goes down, then you will not be able to print documents. But with the use of print server, when a printer goes down, then the printing job is transferred to other printer.
Print server manages workload on printers such that if one printer has lots of printing jobs, then it will assign some of the jobs to other printers in the network. It means if your printing job is spooled to print server, then it will get completed.

Tips On Mt4 Programming For Beginners

SS

Meta Trader 4 is a software application that helps brokers and the general public to trade currencies. It is a charting & trading tool combined into one and allows the user to visualize charts, analyze the market, and eventually place orders, as well. It also has a built in communications tool so that the broker can inform the client of the latest news, analysis, and other messages. This makes it convenient and cost effective as e-mail or phone messages do not need to be exchanged. What makes this software so useful is the fact that an MT4 programmer can program it to write individualized trading strategies.

The basic MT4 programming is done in a language called MQL4 which stands for MetaQuotes Language and the four is the version number. The MQL is similar to C but has a number of built-in functions that allow MT4 programming to automate analysis with ease. Someone with prior knowledge of C can easily write programs in MQL. MetaQuotes is actually the name of the Russian company that built the system. An MT4 programmer can create expert advisors, custom indicators, or scripts in the system.

Expert Advisor is included in MT4 programming and automates the trading deals for the user. This means that it stops them, cancels them, or replaces these orders, depending on the instructions written into program. Custom Indicator is another program which allows the use of technical indicators and the script program executes a single function. Scripts are held only one time and not by ticks.

The MetaTrader Client Terminal is the one most people are interested in and use most frequently. It is a freeware that can be downloaded into the computer directly online and supports automated trading. A demo needs to be opened or there has to be a live account through a broker if trading is to be conducted. When the need arises, an MT4 programmer can be hired to write programs into the system so the individual strategies can be carried out by the software.

The MetaTrader Mobile and Smartphone are not freeware; they need to be purchased. But with their addition, a trader is free to trade from anywhere, even when they are on the move, provided there is a good internet connection. Finally, there is the MetaTrader MultiTerminal which is a more specialized tool. It allows money managers with multiple trading accounts to carry out trades on the same platform. Automated trading is not supported on this yet.

MetaTrader is a very powerful tool that both experts and beginners like to use. It has the convenience of built-in strategies for the novice, while the option to write personal strategies make it practical for the expert. Being a freeware for the end user, it is accessible to everyone with equal ease.

ASP .Net Programming-Outsourcing India Makes Your Ways Through

V

The use of ASP.net programming is in the website development or dynamic website development. It has a vast use in activities like templates, database management, database access, frameworks and other activities. As there are other programming software and when we had a comparative study ASP. Net is the best among all in quality as well as flexibility. This also came to know that ASP. Net programming is one of the best programming software which is most suitable, affordable and provides the secure programming for the development process.

There is a vast huge of this programming software in the the development of the various web application. This framework has been vastly used in building or developing many application for the i Phone or blackberry. Asp .net is also useful in recruitment process and also has a important use in shopping cart facility as it provides shopping cart with various payment gateway. ASP.net programming has a very vast use on the E commerce platform from the website creation to the mobile handset application development and it is also provide shopping cart facility through any payment gateway so one has the best opportunity with the versatile majestic software framework.

One can have the best use of the versatile programming software and can have the maximum use through professional approach in an most appropriate manner with professional grace and touch. What is the best source to hire the professional ASP.net programmers? Outsourcing from the best Indian outsourcing company is the best one as it will give you professional output along with the huge price difference as in India professional ASP.net programmers can be found easily at low cost. So with the best quality development you will be able to save thousands dollars. If you are in such development need or for one who wants to make his best chances on E commerce platform Outsourcing India is the best option. You not need to worry about any further assistance or any kind of help as vast community of professional ASP. Net developers are available to assist you anytime only you need to search best outsourcing company which has a remarkable reputation and you can leave your development work on their shoulder. You can do online research and can get the information about the particular company’s client list and their work. When you get such dependable company you just need to contact them for the hiring of professional ASP.net programmers or developers.

Virtual Private Server

VV

Virtual private server is nothing but a marketing term used by Internet Hosting Services which refers to a virtual machine for the use of an individual customer availing the service. Even software running on the same computer as same as the individual customer computer, it absolutely work as a separate computer and for the need of the customer. It also has the privacy of the separate physical computer and can run just like a server computer if configured. The term VDS is less used for the same process compared to VPS, each of these can run their own operating system and can be independently rebooted, which helps the user a lot in configuring any process and using it. Partitioning of a single server is done so that it can be showed as multiple has been in practice since a long time, especially both on mainframe computer and mid range computers. It has become more popular with the development occurring day by day in case of virtualization of software and technologies for micro computers.

It bridges the gap between dedicated hosting services and shared web hosting services by giving independence of the VPS services in software terms. It cost less compared to physical dedicated servers. It runs at its own operating system and is capable of running any software on other operating systems some doesnt run in virtualized ones. There are two types of hosting, the first one is Unmanaged and other is unmetered. In the case of unmanaged one the customer is left to monitor and administer their own server and in the case of unmetered one, unlimited amount of data transfer is allowed on a fixed bandwidth line. Unmetered hosting is offered with 10 Mbit/s, 100 Mbit/s or 1000 Mbit/s.

Here the customer can use 3.33~ TB on 10 Mbit/s, 33~ TB on 100 Mbit/s and 333~ TB on a 1000 Mbit/s line. A VPS is also referred as cloud server it has two attributes which are- additional hardware resources can be added at runtime (CPU, RAM), and Server can be moved to other hardware while the server is running (automatically according to load in some cases). As an intermediary service between shared web hosting and dedicated server hosting, the actual hardware server is divided into several isolated environments. Each environment, or space of the hardware, has its own server software, mail server, and independent software instances and services. VPS hosting offers an extremely affordable hosting solution for business owners.