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What are the advantages of inheritance?
Brijendra
- Sep 23rd, 2012
1) Inheritance is the concept where the child class can concentrate on new features that it want. because all the basic features it will get it from its parent class.
2) It is about re-usability of features.manisha chandani
- Aug 24th, 2012
Helps in reusability of code.
Program development time is reduced.
Helps as security purpose. -
What is an abstract class
manisha chandani
- Aug 24th, 2012
Abstract class is a class which contains atleast one abstract method.
Abstract method-method whose body is not defined.
Object of abstract class cannot be created.
vijin
- Apr 9th, 2012
Abstract class is a base class. It is only declare a method and implement this method in a derived class using the override method.
it is declare a abstract keyword, and no need for create object for abstract class. -
Dispose()and close() method
Difference between dispose()and close() method
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What is factory class?
Sandhya.Kishan
- Jun 13th, 2012
It is a class which provide an interface for creating families of related objects.It encapsulate the logic which helps to decide which subclass should be instantiated and hence removes this decision f...
00elton00
- Aug 5th, 2007
A Factory class is one that is used to return instances of other classes. This is generally used in the context of Factory Design Pattern.
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Which languages are included in object based languages other than VB and java script
Sandhya.Kishan
- Jun 13th, 2012
Object-oriented languages include Simula, Smalltalk, C++, Eiffel, Python, Ruby, C# and REALbasic other than Vb and java script.
harpreet sran
- Nov 15th, 2007
Other object oriented languages are c++ & simula 67
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What are 4 member function for each object in c++.
Each C++ object possesses the 4 member fns, what are those 4 member functions.please tell me what i s the answer for this question.
Sandhya.Kishan
- Jun 13th, 2012
Each C++ object has constructor,default constructor,copy constructor and destructor as the member functions.
ABC
- Aug 24th, 2011
Following are four default functions available for each object
1) constructor
2) destructor
3) copy constructor
4) assignment operator -
Pure Virtual Functions
How can you make a class as interface, if you cannot add any Pure Virtual Function?
Sandhya.Kishan
- Jun 13th, 2012
By putting a virtual destructor inside an interface makes a class an interface.
sangeeta
- Feb 21st, 2012
Add pure virtual destructor in that class
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What do you mean by package access modifier?
Sandhya.Kishan
- Mar 10th, 2012
Access modifier are used to implement encapsulation feature of oops.There are 3 access specifiers namely Private: The current class will have access to the field or method. Protected - The current cl...
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What are data model and class model in Object Oriented Approach specially in C++?
Sandhya.Kishan
- Mar 10th, 2012
Data model is an abstract model which describes the representation and usage of data.In oops context data are modeled as units of objects and data model represents the logical organization of real wor...
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How round robin algorithm works ?
Sandhya.Kishan
- Mar 10th, 2012
In round robin algorithm time slices are assigned to each process in equal portions and in circular order, handling all processes without priority. Round-robin scheduling is simple, easy to implement,...
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Sigbus error ?
What is sigbus error
Sandhya.Kishan
- Mar 10th, 2012
When a bus error occurs a signal is sent to the processor called as sigbus signal.The constant for sigbus is defined in header file signal.h.Sigbus error is thrown when there is improper memory handling.
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What are the types of Inheritance?
gowtham
- Feb 28th, 2012
Creating a new classes from exiting classes 5 type
ruchika arora
- Feb 27th, 2012
There are 5 types of inheritance: -1. Single inheritance2. Multilevel inheritance3. Multiple inheritance4. Hierarchical inheritance5. Hybrid inheritance
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Is it possible for two classes to inherit from each other
Praveen
- Jan 17th, 2012
No, it is not possible. One of the reasons is stated below.
In inheritance, if we create an object to child class, the base class constructor is by default called in derived class constructor as the first statement. Since there is cyclic dependency it will go into infinite loop.shivaramag
- Aug 4th, 2011
No it is not possible. compile time error is thrown
Circular base class dependency involving 'x' and 'y'
x & y are classes derived from each other. -
Can we inherit private members of class ?
ProgrmmingBOT
- Nov 21st, 2011
We cannot inherit private members of a class,but you can use friend functions to access private data
sean
- Oct 10th, 2011
If you can declare the sub class in the base class (i.e if you make sub class as inner class in base class), you will be able to access the private members of the base class.
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Explain one method to process an entire string as one unit?
Ayushi Gupta
- Oct 15th, 2011
Using gets we can enter the entire string
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What is friend function?
Purbita Biswas
- Oct 8th, 2011
A friend function is a function that is not a member of a class but has access to the private and protected members of the class. A friend declaration can be placed anywhere in the class declaration. ...
suganyayaso
- Mar 13th, 2009
A friend function is used for accessing the non-public members of a class. A class can allow non-member functions and other classes to access its own private data, by making them friends. Thus, a friend function is an ordinary function or a member of another class.
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Write a program to concatenate two strings.
sojitra.Ankit.k
- Sep 22nd, 2011
Code- #include<iostream.h>
- #include<conio.h>
- #include<string.h>
- #include<stdio.h>
renji_reshma
- Oct 1st, 2007
#include<stdio.h>#include<conio.h>#include<string.h>void main(){char name[50],fname[15],sname[15],lname[15];int i,j,k;clrscr();printf("First name:");gets(fname);printf(&quo...
OOPS Interview Questions
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