Please tell me the oops concept with detailed answer
Answer Posted / mahesh_b.tech@2008
There are mainly 4 object oriented principals.
1)ABSTAACTION:process of providing necessary properties &
operations of an object.
2)ENCAPSULATION:process of providing all the properties
&operations of entity in one place.
properties...>variables
operations...>methods
place ...>class
3)INHERITANCE:process of writing a new class(derived
class,sub class,chiled class) by using the functionality of
existing class(super class,base class,parent class)
4)POLYMORPHISM:one form behaving differently in different
situations.
ex:tv remote button,same button used to make the tv on &
off.
| Is This Answer Correct ? | 8 Yes | 3 No |
Post New Answer View All Answers
what is the drawback of classical methods in oops?
What is class and example?
What is the main purpose of inheritance law?
What is the point of oop?
What is the types of inheritance?
Question In a class, there is a reference or pointer of an object of another class embedded, and the memory is either allocated or assigned to the new object created for this class. In the constructor, parameters are passed to initialize the data members and the embedded object reference to get inialized. What measures or design change should be advised for proper destruction and avioding memory leaks, getting pointers dangling for the embedded object memory allocation? Please suggest. Question Submitted By :: Sunil Kumar I also faced this Question!! Rank Answer Posted By Re: In a class, there is a reference or pointer of an object of another class embedded, and the memory is either allocated or assigned to the new object created for this class. In the constructor, parameters are passed to initialize the data members and the embedded object reference to get inialized. What measures or design change should be advised for proper destruction and avioding memory leaks, getting pointers dangling for the embedded object memory allocation? Please suggest. Answer # 1 use copy constructors 0 Shanthila There is something to be taken care in destructor, in copy constructor, suppose the memory is assigned to the embedded member object pointer with the parameter passed value, but if some other objects of different class also are pointing to this memory, then if some one deletes the object then this class member pointer object will become dangling, or if the object is not deleted properly then there will be memory leak. Please suggest the design change required to handle or avoid this situation
What is polymorphism give a real life example?
Why do we use oop?
Question: Implement a base class Appointment and derived classes Onetime, Daily, Weekly, and Monthly. An appointment has a description (for example, “see the dentist”) and a date and time. Write a virtual function occurs_on(int year, int month, int day) that checks whether the appointment occurs on that date. For example, for a monthly appointment, you must check whether the day of the month matches. Then fill a vector of Appointment* with a mixture of appointments. Have the user enter a date and print out all appointments that happen on that date.
what are the different types of qualifier in java?
Explain virtual inheritance?
Write a java applet that computes and displays the squares of values between 25 and 1 inclusive and displays them in a TextArea box
What is the point of polymorphism?
Write a program to implement OOPS concepts such as inheritance, polymorphism, friend function, operator overloading?
What is coupling in oop?