@Vraj Mehta – Yeah , was studying Modern Physics , but I drifted off and landed here . Any way, I am taking a 15 min break , still 5 mins are left , so I'll utilise it here on Brilliant .

@Rajorshi Chaudhuri – Sorry , for that !!! Edited !!!

@Shweta Salelkar – Well, you can add me to your friends list!

PS in grade 10

@Shweta Salelkar – Hmmm, but why do you feel honoured ?

@Pratik Shastri – Lol , everyone knows you are better in Physics !!

@Pratik Shastri – Yeah He's The Topper.He will get 65+ without Studying

@Pratik Shastri – So you are from FIITJEE vadodara , have you met Nevil shah and hitarth shah - both from bharuch , heard about Jhanvi patel?

@Vraj Mehta – Well, what do you suggest ?

@Ronak Agarwal – You have external examiner right, are they lenient? Or the coaching institute plays a role in your practicals too?

@Cody Martin – ohk, mine was outside delhi.

@User 123 – Well, I've got to revise some Class 11 concepts like Rotational motion , Oscillation and waves and stuff . I had just been asking my senior friends like Deepanshu for help regarding such topics , so I guess I just have to put their advise to play !

@User 123 – Aachchaa, if it's not too much trouble, could you please recommend some Physics books for me? Thanks a lot. If I'm bothering you, then I'm really sorry for doing so.

@A Former Brilliant Member – Just have another friend (other than you) on this site: Samarpit Swain, and he must have reshared it a thousand times by now. Thus all those who follow him must have seen the question by now (that is if they did not get too bored of it).

@A Former Brilliant Member – Aw! Thanks. I expected a bit better with the grammar part though! But yeah, as I say : C'est la vie~ Comme ci , comme ca~

@A Former Brilliant Member – Net beans java is good.Visuals are good.

@A Former Brilliant Member – I see. I used to do Java on BlueJ.

@Naman Kapoor – Ok

@Agnishom Chattopadhyay – Haha , thanks . Actually the situation in my school last year was such that I had to think so .

@Raghav Vaidyanathan – Thanks :)

I'm not in much pain right now , since I had slept for 2 hours . Btw , my next exam is IP(Informatics Practices) which is quite easy , so yes , I am ready to kill it !

What's your next exam ?

@Vraj Mehta – Dude, stomach ache by itself is difficult to bear , and on top of that the Power cut and the soaring temperatures! I must have been trying to control the pain , when you had seen me .

I bet you were cruising through the paper , you even took a supplementary !

@Pratik Shastri – What are you studying right now ? And when's your PE exam ?

@Ronak Agarwal – Same here , but I have to read the 1st 2 chapters and the Last chapters . You know, the boring theoretical stuff !

@Ronak Agarwal – Can you please tell what is the answer for: Find minimum value of OA+OB if they are the intercepts made by the tangent to the circle $x^{2} + y^{2} = 4$

@Mahimn Bhatt – How much are you expecting ? 70 ?

@Ritu Roy – In IP(Informatics Practices) the things that we learn are :

• Java

• MySQL

• HTML , XML

And CS(Computer Science) includes

• C++

• A Database Management software (maybe MySQL only)

• Boolean

This is as far I can say about CS since I am an IP student myself . I'll ask my friends about it .

@Pranjal Jain ,@Raghav Vaidyanathan : Am I correct about the CS Topics ?

@Ritu Roy - Are you really 16 years old ? I'm asking this because a girl of your exact same name was in my class when I was 9 years old .

@Raghav Vaidyanathan – Yeah , I forced them all to make a G+ account today itself!

Btw , my subjects were : P , C , M , E , IP .

@A Former Brilliant Member – I know. I was trying to see if I could still remember it XD Why are there no wikis for computer science?? I really want to contribute.

@Ronak Agarwal – Okay, consider this:

We want to model some real life things in a program. When I say real life things, take for example a block of wood. How will we do this? One obvious way is to make functions that are related to each property of the block(like one to fix mass, size, colour, type of wood, etc) and run them all together. But this is a difficult task, I don't even think you can do this.

Classes are the answer to such problems. They are the implementation of a programming paradigm called Object oriented programming. By programming paradigm, we mean our approach to programming and problem solving. To put it in simpler words, coordinate bashing is a problem solving paradigm in mathematical Olympiads and so is using pure geometry. Object oriented programming is a tactic used to model the real world by thinking of it as a collection of interrelated objects which behave in certain manners. The object is the central concept here.

Take our block of wood. Using classes, we will define a class called "Blockwood" which will enable us to wrap up all the properties of this block into a single entity. In the class, we will define the characteristics of the block, like colour, size, shape, mass, etc. But that itself doesn't make it a good model of a block of wood. We also need to specify how this block will interact with other parts of the program. This is done by using methods(functions). The functions define how the class object will behave in situations. For example, a function reflectlight() can be defined which returns 1 if light falls on the block(you will understand this as we continue).

Now that we have our class, we can define an object of this class "Blockwood". Let this object be named BW. The program recognizes BW as an entity, much like how we recognize a block of wood. You can only interact with BW in the program through ways that are allowed by the methods. Much like in the real world, where we cannot simply transform wood into gold or put our hands through it. The object interacts only in the way it is supposed to.

Observe now that once we have such an object BW, we need not be worried about it's inner workings and methods. The user of the program is unaware of all the complicated code and is instead just presented with an object which he/she can work with and is familiar with.

Also, having one class is no fun. It's when multiple classes come that the real story begins. What if we define a class called "Rock"? We define all the properties of rock. The interesting part now is that we can create a relationship between Rock and Blockwood. As Blockwood is already defined, we can add methods to Blockwood which can model real world relationships with Rock and vice-versa. For example, a function "makesound()" which returns 1 if a rock and a block of wood are struck together. Now we have two interrelated classes, which can be used to make objects which interact with one another, similar to the way they do in the real world.

What's above is just an amateur's take on the use and importance of classes. The true power of classes is much more profound, but understanding this is the first step. Hope it helps @Ronak Agarwal

@Ronak Agarwal – Do you like coding ? If so , ignore these technical definitions for now , you'll be able to understand them later as you progress as a coder.

This worked for me , earlier I used to memorise these definitions , but I soon got tired of them . So I ignored them and started practicing coding (here on B'ant and some other sites) and later on when I came back to those definitions , I understood them quite clearly !

Good Luck to you :)

@Gautam Sharma – New note on this link. pls comment here