-
Difference between data encapsulation and abstraction?
shivamrastogi
- Nov 17th, 2008
Encapsulation: wraping of data in a single unit.Abstraction: Data hiding
hafeez_munawar
- Jul 11th, 2008
Encapsulation:Data and function that operate on that data are wrapped in a single unit.Abstaction:In abstratction, only interface in exopsed, the underlying details of the particular function is hidde...
-
How to convert roman number into decimal number
yaga80
- Jan 25th, 2009
private int toInt(char c) { switch (c) { case 'I': return 1; case 'V': return 5; ...
-
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
-
What is the difference betwwen in Abstractionand Encapsulation.explain with example
ghunghru
- Apr 22nd, 2009
Abstraction is just like a Hotel room where a single person wants only 1bed+bathroom but family required minimum of double bed +bathroom. Whereas few people want AC system or hot water system or T...
sajithkt
- Aug 8th, 2006
where do we use abstraction and encapsulation in core java. give some program examples....
-
What is prototype based programming?
msuresh70
- May 25th, 2009
Create a prototype based on client requirement to get better understanding and to iorn out the differences bettween client and ours. Once everyone on the same page, start working on implementing these into design and development.
vikas_3000
- Aug 13th, 2008
In prototype programming we create a prototype based on the?client conversation?and show it to client and make modification as per its requirement, this process continues till the client get satisfied after that further testing and deployment is done.
-
Explain the Polymorphism principle.
The meaning of Polymorphism is something like one name many forms. Polymorphism enables one entity to be used as as general category for different types of actions. The specific action is determined by the exact nature of the situation. The concept of polymorphism can be explained as "one interface, multiple methods".
msuresh70
- May 25th, 2009
Polymorphisam: It can be catagorized into three ways.1. Method Overloading 2. Method Over-riding3. Interface methods implemented differently in different ways in sub-classes.Overloading: Define method...
Rad
- Oct 14th, 2007
Polymorphism consists of 2 principles: Overloading and Overriding
-
Scope resolution
What is scope resolution in C++ and object oriented ?
-
Bit wise operator
In a given number how many 1 bits and 0 bits are there,,,,,,,,,,can anyone solve this problem by using bit wise operator
nair.midhun3
- Jul 10th, 2008
Int one =0;//number of onesint zero=0;//number of zerosfor(int i=0;i<16;i++) if((x >> 1) & 1 == 1) one++; else zero++;
-
Why we use Virtual Destructor?
VENKATGOPU
- Jun 10th, 2009
/*without virtaul*/#include <iostream>#include<conio.h>using namespace std;class Base{ public: voi...
agarwalneha1
- Jan 30th, 2009
As far as i understand the key word "virtual" is that when ever we try to use pointers i.e. -> calling a funtion of derived class thru the pointer of base class pointing to the object of ...
-
What is difference between abstract data type and encapsulation of data?
remodarling
- Jul 22nd, 2009
Encapsulation means data hiding+abstraction. In data hiding we will not allow our data to go out directly. Eg. Declaring data members as private is data hiding, where as abstraction means hiding internal implementation is called abstraction.
ppchandak
- Dec 23rd, 2008
Data type, methods, properties etc of a objects are Data Abstraction where as its implementation and functionality is hidden from other objects is Data Encapsulation.
-
What are the demerits of Object Oriented Programming(OOPS)?
swamisivakumar
- Aug 10th, 2009
Personally I find oops code can get very hard to read, even well written code. The problem is inheritance and polymorphism.The problem with inheritance is that if you want to figure out what a given m...
prateeks88
- Nov 5th, 2008
Considering the demerits of the OOPS I would say that-it?is a lenthy process and takes time for coding(increases the no. of lines of code) as compared to the procedurals BUT?OOPS simplifies?the complex programmes and has much more advantges over its neglectable diadvantges
-
Component Object Model - COM
Explain Component Object Model used in C, C++ and .NET
Gunvant
- Sep 6th, 2009
COM is a platform-independent, distributed, object-oriented system for creating binary software components that can interact.
mahesh.alladwar
- Dec 1st, 2008
The Component Object Model (COM) is a component software architecture that allows applications and systems to be built from components supplied by different software vendors. COM is the underlying arc...
-
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.
-
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.
-
Describe the principles of OOPS
There are three main principals of oops which are called Polymorphism, Inheritance and Encapsulation
nkumar1095
- Oct 8th, 2009
Abstraction: Involves extracting only the relevant information.Encapsulation: Involves packaging one or more components together.Inheritance: Is a process of creating a new class by adding some featur...
snvgram
- Jan 10th, 2009
The four basic principle of OOP are:AbstractionEncapsulationHierarchyand ModularityPlease note that there are many other object oriented principles, but the above the are basic ones.We can refer Class...
-
else
printf("b<.7 and a>=.5");
else
printf("b>=.7");
}">Output and why?main(){ float a=.5,b=.7; if(b
KishoreKNP
- Dec 2nd, 2009
Each and every float constant in C/C++ treated as double, because of this this program won't work as you expected. Add "f" like ".7f" after every float constant then it works as you expected.
Akash
- Feb 6th, 2007
The output of the above programme will be b=0.5 .7 is not stored as 0.7 ie it is stired to some value which is slightly less that 0.7 so the control will not work as expected [this is the only excception i guess for floating point nos]
-
What is the use of destructor?Can any explain me deep using program?
KishoreKNP
- Dec 2nd, 2009
Destructor is a special member function of a class, which is called automatically by the compiler when the object is getting destroyed. In general we write the code here to cleanup the resources that ...
kavitha
- Jul 26th, 2006
desturctor is to destory objects.this is denoted by '~'.for eg:class alpha{public:read(int);disp();~alpha();};void alpha::read(){cout<<"Enter i":cin>>i;}void alpha::~alpha(int i){i--;cout<<i;}
-
}">
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
-
Difference between "printf" and "sprintf".
KishoreKNP
- Dec 4th, 2009
Printf and sprintf both will do the same work, but printf outputs on stdout(moniter) where as sprintf() printf the output in a string
vmshenoy
- Jan 9th, 2007
printf is the standart function in (c) programming language library for printing formatted output.egprintf writes the resulting string to the standard output(remember, Awk has...
-
What will happen if I allocate memory using "new" and free it using "free" or allocate sing "calloc" and free it using "delete"?
KishoreKNP
- Dec 4th, 2009
new and freeWhen you use new operator for allocating the memory, it calls constructor by default, and when free the memory using "free" function, it won't call destructor of the class.so...
zdmytriv
- Jan 24th, 2008
1. new and free - no constructor was called so you can get blocked memory(memory leak), but no error2. calloc and delete - delete can be called to the object of the class, so you'll get and error
OOPS Interview Questions
Ans