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What is the difference between overloading and overridding?
navneetgoyal2000
- Jan 4th, 2011
Additionally:Overloading is done in same scope (i.e. having two functions with same name (but different signature in same class scope or same file scope).WhileOverriding is specifically related to inh...
attiq.ur.rehman92
- Oct 28th, 2009
Overloading is related to the use of a function or an operator. For example you can use a function for adding some integers as well as floats so this function is overloaded as it works for two differe...
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What are Virtual Functions? How to implement virtual functions in "C"
ramyajaya
- Jun 2nd, 2011
virtual functions are used to avoid overriding, when a function in the base class is said as virtual then the same function name when being used in the derived class, even then the function in derived...
stman
- Jul 11th, 2007
In C you would use an array of pointer-to-functions and call the functions by using the array index.
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Is class an Object? Is object a class?
beekal
- May 25th, 2010
A Person is a class and You and me are two objects of Class Person. We can create hundreds and thousands objects of the class and those hundreds and thousands objects still would be uniquely dif...
sfjadi2010
- Apr 11th, 2010
In my last interview, the interviewer ask me a question which is similar this one. No, class is not an Object or Object is not a class, we just say that Class is a prototype to creates objects. First we need a prototype then we have object, wihtout prototype or class object cannot be exist.
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While copying the objects if you say X a = b and asssume that '=' operator is overloaded then what it will call, a copy constructor or operator overloading function
adeelqamar8
- Sep 12th, 2008
Copy constructor would be called to perform the deep copy of object b into object a.
vikas_3000
- Aug 13th, 2008
It is not operator overloading, it is just copy constructor which assign that the value of b is copied to a.
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What is the most efficient way to count the number of bits which are set in a value?
grvmab
- Oct 2nd, 2010
#include<stdio.h>void main(){int n,r,c=0;clrscr();printf("Enter number:");scanf("%d",&n);while(n>0){r=n%10;c++;n=n/10;}printf("nNumber of bits:%d",c);getch();}
stephen_benny
- Apr 3rd, 2010
As part of SSE4 instruction set available in Intel and AMD there is one instruction named POPCNT to count number of bits set to 1. Furthermore, you can use it in gcc through the builtins __built...
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What is the Difference between Class and Instance
a_l_soni
- Oct 1st, 2009
Class contains the declaration and definition of all of it member variables and the member functions, along with their respective access specifiers. A Class remains same for all of it's objects or...
Gothic
- Feb 25th, 2009
The Class is a blueprint which holds the code, but the instance is the real object inside the memory so we can access its properties and methods in the Run-time.
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What is an Abstraction?
Does the c supports abstraction?with example...and what is the diff. b/w abstraction and encapsulation?
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Explain the Encapsulation principle
Encapsulation is a process of binding or wrapping the data and the codes that operates on the data into a single entity. This keeps the data safe from outside interface and misuse. One way to think about encapsulation is as a protective wrapper that prevents code and data from being arbitrarily accessed by other code defined outside the wrapper.
srinathbairu
- Jun 24th, 2010
Every program deals with two elements:1) Data 2) Code [function]Combining these two elements into a single unit is known as Encapsulation (Binding).
dkapadia
- Sep 5th, 2008
Encapsulation with a simple example would be .Automatic Transmission on an automobile. It encapsulates 100's of bits of information about your engine, such as how much are accelerating, the pitch ...
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How do you write a program which produces its own source code as its output?
praveensaini23
- Jun 28th, 2010
#include <stdio.h>int main(){char ch;FILE *file;file=fopen("printitself.c","r");while((ch=fgetc(file))!=EOF)printf("%c",ch);return 0;}
Manoj
- Mar 14th, 2007
All the solutions above are reading the source code with the files concepts.find a solution where you do not have a source file to read the contents.There is a macro or an attiribute which tells the c...
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Difference between data abstraction & encapsulation.
Lobzang Ladakh
- Apr 17th, 2009
Abstraction:Denotes the essential properties and behaviour of an object that differentiate it from other objects. e.g: We use objects but we're not concerned with whats going behind the scene.Encapsul...
faran
- May 28th, 2008
Abstraction: We don't have to bother about the data type of the object while accessing it.Encapsulation: We put all the correlated data and methods in a class.Faran Shabbir
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Can static class be inherited in super class? If so how. What are the various types of OOPS in Dot Net architecture?What is the method that is used in Dot Net (like top-down, water fall)
Can static class be inherited in super class? If so how.
What are the various types of OOPS in Dot Net architecture?What is the method that is used in Dot Net (like top-down, water fall)
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santosh.ifc- Member Since Oct-2007 | Mar 19th, 2008
the static method will be inherited to the sub class only
jasvinderSingh
- Feb 26th, 2010
Static class can be inherited in super class..NET architecture is COMPONENT ORIENTED not a OOPS and bottom-up method is used.
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Explain the Inheritance Principle
Inheritance is the process by which one object acquires the properties of another object.
goksn
- Sep 9th, 2009
Inheritance is one of the important principles of OOP.Inheritance is the process by which one object acquires the properties of another object.By use of Inheritance , an object need only define those ...
jdoe123
- Aug 6th, 2007
Inheritance involves building upon an existing class so that additional or more-specialised functionality is added.A key design aspect of inheritance is that it is used in a manner which is understandable and supported by a clear, justifiable relationship.
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Could any one explan me what happens in this program. main(){ int i=10; i=(++i)/(i++); printf("i=%d",i); }
KishoreKNP
- Dec 2nd, 2009
The answer is 2, because the statementi = (++i) / (i++)will be processed from left to righti = (++10) / (10++)which meansi = 11/10++Here still ++ operator is not executedi = 1++; // 1 because it is an integer operationi = 2;if you changei = (++i) / (++i) you will see 1
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OOPS Interview Questions
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