What’s the actual use of Methodology overloading in Java and Object Oriented Programming? Instance

Many programmers, together with Java and C++ developer, is aware of concerning the object oriented programming ideas like technique overloading or operate overloading, however if you happen to ask them why it is best to overload a technique? Lots of them change into clueless. It is a frequent drawback of half studying i.e. you already know the idea however you do not know the applying. For those who neither know what drawback it solves nor what profit it supplies, then simply figuring out the idea shouldn’t be sufficient. You will not have the ability to reap all advantages if you happen to simply know the idea and by no means use that in observe. If you’re questioning what’s the actual use of technique overloading then don’t fret, I’ll share the reply on this article. Btw, that is additionally one of many well-liked object oriented programming interview query and its good to find out about it. 

An important profit overloading supplies is a cleaner and intuitive API. It additionally offers you extra flexibility whereas writing API, for instance, you possibly can take a look at the println() technique. The job of this technique is to print one thing and add a brand new line. Now, you possibly can print any type of knowledge varieties like int, quick, lengthy, float, String, or Object.

That is the place overloading makes your job straightforward, a println() is to print and technique parameters will describe what to print. If overloading was not out there, you’ll find yourself with clumsy APIs like printString(), printObject(), printInteger() and so forth. So, technique overloading supplies you flexibility whereas writing API.

What’s the actual use of Methodology overloading?

Overloading additionally makes your API easier, to offer you an instance, I will decide the kind() technique from C++ Commonplace Template Library (STL) i.e. std::kind operate. C++ is a superb language and supplies you the proper steadiness between low and high-level languages.

It comes with a wealthy normal template library that gives frequent functionalities for utility programming. STL is nice nevertheless it has its personal set of the issue like typically it turns into pointless verbose and counter-intuitive.

The std:kind() kind components in a container in place, for instance, you count on to kind components of Vector as proven under:

vector<int> v;
a.push_back(10);
a.push_back(20);
std::kind(v);

However, No, it will not work like that. The std::kind technique would solely kind over a spread of components in a container, so you could write:

std::kind(v.start(), v.finish());

Had they used overloading and supplied a kind() technique, it could have been a lot simpler to make use of, I imply, while you need to kind all components of Vector, you may have used that. 

Right here is an easy instance of overloading which many programmers would have appreciated and may need accomplished by themselves

template
void kind(T& t) {
  return std::kind(t.start(), t.finish());
}

So, Overloading could make your API loads easier to make use of. As an API designer, you could present the cleanest API doable and technique overloading permits you to try this with out duplicating code. 

You’ll be able to see within the above instance, the true code continues to be within the authentic technique however a wrapper round that makes the consumer code a lot easier. That is one space the place Java actually beats C++. Java’s API, just like the Assortment framework, is significantly better to make use of than C++ Commonplace template library.

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