what does object oriented mean in java Programing ?

Question

please if add some detail to the answer.

Answer 1

Objects are actually the instances of any particular class. They are the basic run-time entities. Generally, data are kept hidden within self-class (encapsulation) and can't be accessed from objects of other classes, but member functions are generally made public, so that they can communicate among themselves.

Answer 2

Object-Oriented Programming is a term that extends a lot further than java, and unfortunately, it's not very easy to give a detailed explanation in a short period of time.

To put it as briefly, (and not explaining much), Object Oriented Programming uses "objects" that interact together to perform tasks. Every "object" has a certain number of things that it can do, (called "methods"), and by using the right objects, a programmer can put a bunch of them together to accomplish a task.

Let me give you a silly example: Let's say that I want to "write a program" to wash a car... In order to wash a car, I need a number of objects...First, I need a "rag" object, that will wipe the car, then I need a "soap" object, to put on the rag, that will then go on the car, then I need a "water" object to wash and rinse with. If I were "programming" something like this, I'd first create an object for each of the things I needed...

(This is not in any programming language, it's just a silly example:)

create washcloth

washcloth can do: wiping, scrubbing

create water

water can do: washing, rinsing

create soap

soap can do: cleaning sanitizing

use rag to wipe and scrub

use soap to clean and sanitize

use water to wash and rinse

Okay, so to explain my silly example..in the "lines of code" above, I created each object, "rag, water, soap" in turn, by saying "create x" and then I gave each thing certain capabilities, by saying "x can do x". Once they had their capabilities, I used the capabilities of each "object" to accomplish my task, use x to x...

I know this seems silly, but if you can get your head around the basic concept, you'll be miles ahead of understanding the object oriented concept. Check out my sources for some much better articles on the web though.

Answer 3

Object Oriented is the programming for developing applications with full of objects. With these techniques the code is very simple to the programmer. Because of reusablity.
In java the object oriented technique is very simple. and also everything should be within class. so it is called pure object oriented programming. In java even developing Operating System also within objects. So that only java is powerful object oriented programming.