Procedural programming languages and object oriented programming Essay - 1

Procedural programming languages and object oriented programming language - Essay Example Procedural programming languages are those that follow the procedural paradigm for programming as is evident. The procedural approach basically guides to transform processes into procedure. First the processes are identified, and then they are broken down into smaller processes which finally shape into procedures. There are several limitations in the procedural approach like extension and re-usability of code is quite limited because of its nature as compared to the object oriented approach, where objects can be reused, updated and redesigned without having adverse effects on overall system functionality. Furthermore, code management also becomes challenging because of its sequential nature. Several object oriented languages offer program solutions based on the object oriented paradigm like Java, C++, .Net, Ada, SmallTalk etc. One of the most important aspects of OOP languages is dynamic binding or late binding. OOP offers a rather different approach than procedural approach. The process of abstraction is managed by objects. Every process will be broken into inter object interactions. OOP languages supports objects, classes, instances, method, message, inheritance, subtype principle etc (Aaby Pg. 968). Class inheritance allows the member attributes and functions of one class to be used as if they were members of a second class. Inheritance is one of the primary characteristics of OO programing (Lippman, Pg. 391). In OOP methodology a system basically consists on interactions of objects and each object has to perform its own responsibility after that the responsibility is delegated to other objects. This delegation of responsibility is through the messages. In OOP methodology the system analysis and design consists of the following steps: Object definition or classes basically describe the objects. The class or object definition consist of properties/ attributes

The history of coal in the 19th century Essay Example | Topics and Well Written Essays - 750 words

The history of coal in the 19th century - Essay Example The demand of coal was highly increased. It was admitted that in 1700 year coal production stand for the â€Å"2.7 million tonnes† while in 1800 year that number corresponded to the â€Å"10 million tonnes† (HistoryLearningSite, 2014). Moreover, till the end of nineteenths century of coal mining increased extremely high. The statistic data showed that in 1900 year coal production enlarged toâ€Å"250 million tonnes† (HistoryLearningSite, 2014). Such increase of coal production happened due to the number of different reasons that are highly essential. First and foremost, it could be mentioned that the industrial revolution led to the urbanization and increasing of population. It was more comfortable to use coal as a fuel than to use wood or charcoal, as the city dwellers have no opportunity to live near the forest and provide wood as a fuel (Wilde, 2015). Moreover, it was a few times cheaper; therefore, it was popular among the city dwellers. Coal industry played a significant role in the production of other things and issues in that period. For example, it was admitted that â€Å"after 1800 towns began to be lit by coal powered gas lamps† (Wilde, 2015). It was relevant to admit that people used coal for the lightening their houses and flats. Moreover, this material provided a helping hand in the development of small and huge industries in Europe (Wilde, 2015). Each factory had used coal as a fuel because of its practice and price. As it was admitted coal was used as a fuel â€Å"from iron production to simply bakeries† (Wilde, 2015). In addition, nineteenth century was marked by the expansion of borders between countries. People constructed channels that made the market of coal production wider (Wilde, 2015). That functioned through the trains and railways. It was worse to admit that they also were in need for coal as a fuel (Wilde, 2015). It was relevant