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What is the memory allocation for pointer?
amar
- Aug 8th, 2007
Memory alllocation for pointer is same as unsigned integer.bcoz pointer variable stores the address of the variable to which it is pointing to regardless of its data type.for eg. char *charptr;int *intptr;here sizeof(charptr)==sizeof(intptr)
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In header files whether functions are declared or defined?
Silvio
- Jul 4th, 2008
It is possible to declare and define body functions in header files, there is no restrictions to create your all code inside a header file.SourceCode.c:#include "SourceCode.h"SourceCode.h:#i...
Yashwant Pinge
- Apr 27th, 2006
It depends on the user that creats the header files.Mostly headers file contains other file declaration and function declaration.Note that declaration and defination of functions are two different things
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What is a Presistent, Transient Object?
pavanhiran
- Jan 26th, 2008
HERE IS ANSWER FOR YOUR QUESTION:TRANSIENT OBJECTS ARE TEMPERORY IN NATURE. ALSO THEY CANT BE SERIALISED UNLIKE PERSISTENT OBJECTS. OBJECT WHICH IS PERMENT IN NATURE TILL THE END OF THE PROGRAM OR REM...
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How to resolve many to many relationship?
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What are the differences between structures and arrays?
misurkar.sachin
- Jul 15th, 2008
Strcture : It is collection of data (Data Types) which can be different in nature e.g. Student{ ...
yogeshpanda
- Sep 21st, 2005
Structure can contain different types of data members but Array contain same types of data members.
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Void pointer
Explain about void pointer and it's real time usage in Business
wael.salman
- Jul 16th, 2008
Pointer to void, or a void pointer, is a special type of pointer that has a great facility of pointing to any data type.Example:int i; float f; int* exf; float* ...
kamal7725
- Nov 30th, 2007
Void pointer are something like you put your stuff like shoes, bag, shirt in your suitcase. and then you just take out all that stuff from suitcase.so we can cast any pointer to void*, and after we ca...
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What is the similarities between macro and function?
VCCoder
- Aug 6th, 2008
We can pass arguments into the macro as well as function.We can say that a Macro is smilar to a global function
Megha
- Nov 10th, 2006
Helo Ranjith....Thanx for explaining the difference b/w a macro and a function.......
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What is the default sizes of String and StringBuffer?
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Can we create a object of Base class?..If we can not create a object of base class then why we need Abstract class?
ABYSS
- Oct 12th, 2006
Yes, we can create an object of the Base class.If we make a class as abstract then we can't create an object of that class.we can create only pointer of that class this is because to provide one interface to access and so that runtime time polymorphism can implement.
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What is Polymorphism?
whenkeys
- Aug 11th, 2008
Poly [many] morph [form] as the name says many forms is supported. Two types of Polymorphism are operator overloading and function overloading.operator overloading => +operator can be implemented t...
SHAKTI KUMAR
- Oct 16th, 2005
A property by which we can send the same masage to objects of serval diffrent class and each object can response in a diffrent way depending on its class..
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Comment: C++ "includes" behavior and java "imports"
whenkeys
- Aug 11th, 2008
Both behave the same way except that when we import in java we can import single class also but we have to include a file and not a Class in C++.eg: import java.lang ...
r.praveenkumar
- Mar 20th, 2008
By using include preprocessor kn c++ the program size will be slightly increased but when we use import statement in java the program size will not be increased at all
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Explain the different forms of Polymorphism.
From a practical programming viewpoint, polymorphism exists in three distinct forms in Java: Method overloading Method overriding through inheritance Method overriding through the Java interface
vikas_3000
- Aug 13th, 2008
Method OverloadingMethod OverridingOperator OverloadingThese are the different forms of Polymorphism in Java.
manish_rana786
- Apr 3rd, 2008
It holds more than one form, It has two types : -1. compile time polymorphism: - That holds the overloading.2. run time polymorphism: -That holds the overridding.
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What is a far pointer? where we use it?
laxmii.s
- Aug 20th, 2008
Far pointer is a pointer variable. It is just like near pointer. But if we use large memory models, then we can use these far pointers. Because these?far pointers?occupy 4 bytes of memory.
Vikas
- Jan 3rd, 2007
Near, far pointers are the types of pointers in C. By using these pointers we can directly access memory to interact hardware before starting hardware programming in C.
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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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Why friend function cannot be used to overload the assignment operator?
rajani_vaddepalli15
- Sep 15th, 2008
Answer is simple...A friend function is a non-member function of the class to which it has been defined as friend.Therefore it just uses the functionality( or the functions and data ) of the class,so. it wont consists the inplementation for that class.(any)
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Why C or C++ Stack index starts from 0.
dhanasweet
- Apr 8th, 2007
if we declare an array a[5], the memory allocate to each member will be accessed by a[0],a[1],.....a[4]. this is the reason index starts with zero.
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Write a program to generate the Fibinocci Series
shilparani.pattar
- Nov 11th, 2008
#include<stdio.h>#include<conio.h>int main(){ int f1=0, f2=1,i, n, k; printf("enter the value of n n"); &nb...
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Why are private fields assigned with public properties?Is this not same as declaring the field Public?
venugopaul
- Nov 12th, 2008
No.By declaring as private field, the value of that field is not visible outside the class....but the value can be retrieved or set using the property...This way you are hiding the data directly but it is accessible only using the function.
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How can a called function determine the number of arguments that have been passed to it?
jaiganesh11
- Nov 15th, 2008
Simply by using the pointers to store the actual arguments, and by working on pointers you can actually return the value to the orginal location.
Ajay Kanse
- Jul 1st, 2007
Use the variable length argument - va_arg , va_list , ca_start and va_end macros
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Write programs for String Reversal & Palindrome check
snrmukund
- Nov 16th, 2008
Main(){char str[10];int i=0;clrscr();printf("Enter the name to be reversed :");scanf("%s",&str);for(i=strlen(str);i>=0;i--){printf("%c",str[i]);}getch();}
poty
- Nov 15th, 2007
REVERSE A STRING#include<stdio.h>#include<string.h>main(){ char str[50],revstr[50]; int i=0,j=0; printf("Enter the string to be reversed : "); scanf("%s&...
OOPS Interview Questions
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