To invoke the virtual toString() function defined in GeometricObject from a Circle object c, use :A. ((GeometricObject*)c)->toString();B. c.super.toString()C. (GeometricObject*)c->toString();D. c->GeometricObject::toString()

vijay.badola

 Profile Answers by vijay.badola Questions by vijay.badola

• Dec 31st, 2009

If we take the following class definitions:class CGeometricObject{public:virtual void toString(){ printf("I am in base");}};class Circle : public GeometricObject{public:void toString(){...

sachin_mundhra

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• Dec 18th, 2009

C) (GeometricObject*)c->toString();

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Base class has some virtual method and derived class has a method with the same name. If we initialize the base class pointer with derived object, calling of that virtual method will result in which method being called?

Vincent Monsen

 Profile Answers by Vincent Monsen Questions by Vincent Monsen

• Jan 31st, 2011

The derived class method will be called because the method is declared virtual in the base class.? Dynamic binding enables this.

ajrobb

 Profile Answers by ajrobb Questions by ajrobb

• Sep 22nd, 2010

This is polymorphism, an object with at least one virtual method. When a polymorphic object is constructed, it includes a hidden vtable containing virtual function pointers and other polymorphic infor...

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What is Static Polymorphism? Give its syntax and simple example.

rdl

• Dec 28th, 2014

The call to a function is resolved at compile time. Eg., function overloading and templates.

Youssef Arbach

• Dec 12th, 2014

Static polymorphism could be seen also with Templates, since the selection of the write function is done at compile time. Usually with inheritance (and call-by ref sure) polymorphism is dynamic, unless it is a call by-value, then there would be no morphism at all.

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surendrap

 Profile Answers by surendrap Questions by surendrap

• Oct 4th, 2011

Simple class is template.no memory is allocated to class until object is declared of that class.

kaviraj

• Sep 30th, 2011

Class is a collection of objects shared a common name ,an object is a runtime entity of a class,using the object we can access class members and functions easily.

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Zubair

• Jan 18th, 2012

Yea It is possible in C++. Here is the code snippet. "cpp using namespace std; class Sample; class SampleBase { friend class Sample; public: private: SampleBase() { } Samp...

Amit

• Jan 6th, 2012

If you make all the constructor and assignment operator private of a class then logically you can prevent any other class to use your base class. Even your derived class can inherit the base class (t...

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sakshi

• Oct 4th, 2012

Code
span style="color: #ff0000;">"factorial of the no :"+f);
 
Console.ReadKey();
}

Anugya Singh

• Sep 4th, 2012

Code
#include<iostream.h>
#include<conio.h>
"Enter the Number whose factorial value is to be find 
""Fctorial is "<<f;
getch();
}

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Write a program to display all possible permutations of a given input string--if the string contains duplicate characters, you may have multiple repeated results. Here is a sample for the input cat
cat,cta,act,atc,tac,tca

Jin Hyuk Cho

• Feb 3rd, 2016

A working example

Code
#include <iostream>
#include <string>
#include <set>
#include <sstream>
// constructing remaining characters
// constructing empty set for results
//cout << onePermute << endl;
" ""Done!"

neha

• Aug 27th, 2015

plz see below code"cpp #include #include using namespace std; void Permutations(string str) { for(int i = 0; i < str.size(); i++) ...

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SARAVANAN SIVAJI  

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• Member Since Aug-2007 | Aug 1st, 2007

---

The main difference between C and C++ are:

1.  C is a procedural language whereas C++ is a non-procedural language.
2.  C gives importance to functions (methods) whereas C++ gives importance to both functions and data.
3.  C allows the data to flow around the functions freely whereas C++ wraps up the data and functions together, due to that datas were not allowed to flow around freely in C++.  This is said to be Encapsulation in C++
 

Other differences, ( actucally there is lot to mention......here are the two )

1.  C allows struct, union, and enum types to be declared in function prototypes, whereas C++ does not.

2.  A struct, union, or enum declaration in C++ declares an implicit typedef, while in C it does not

SARAVANAN SIVAJI

 Profile Answers by SARAVANAN SIVAJI Questions by SARAVANAN SIVAJI

• Aug 1st, 2007

One more point: we can include..........In C, the members in the struct, by default, public.In C++, the members in the class, by default, private.

SARAVANAN SIVAJI

 Profile Answers by SARAVANAN SIVAJI Questions by SARAVANAN SIVAJI

• Aug 1st, 2007

The main difference between C and C++ are:1.  C is a procedural language whereas C++ is a non-procedural language.2.  C gives importance to functions (methods) whereas C++ gives importance t...

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sachin_mundhra

 Profile Answers by sachin_mundhra Questions by sachin_mundhra

• Dec 18th, 2009

Using placement new operator user can allocate memory in a specific memory address. Example: SomeClass at a particular memory address stored in a pointer type variable named pmem new(pmem) SomeClass;

vidhudatta

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• Sep 23rd, 2009

Placement syntax allows programmers to explicitly specify memory management of objects. The placement versions of new operator is called placement new.

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vladatzar

 Profile Answers by vladatzar Questions by vladatzar

• Oct 29th, 2010

It is NOT possible!Binary file can be ONLY dissasembled to Assembler Source Code.C# CAN be decompiled and can give proper C# Source code, but this is because C# is more like interpreter and .NET ...

sanjay Maheshwari

 Profile Answers by sanjay Maheshwari Questions by sanjay Maheshwari

• Sep 17th, 2010

It is possible technically, because high level language codes converted into low
level, so there are some ways to converts this low level to high level..For
Example 2 - 0000 0010so it can be converted 0000 0010..There
are some software which are used in private areas.

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laxmanmanne

 Profile Answers by laxmanmanne Questions by laxmanmanne

• Jun 23rd, 2010

This boils down to the concept of Binary digits. Take an array size of 64 for example. We start from 0 and end at 63. We require 6 bits.But, if we were to start from 1 and end at 64, we would require 7 bits to store the same number, thus increasing the storage size.

Nisikant

 Profile Answers by Nisikant Questions by Nisikant

• Jan 30th, 2009

The array is terminated by a NULL character. Hence for array elements the space will be length-1. suppose you have 5 elements in an array. The last position is occupied by NULL character, then space a...

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yunisha pandey

• Jan 14th, 2015

And what are the disadvantages of operator overloading???

Nisikant

 Profile Answers by Nisikant Questions by Nisikant

• Jan 30th, 2009

When the operator operates on the user defined data type or operands behaves same as it operates on inbuilt data type that mechanism is known as operator overloading. The operator that performs the sp...

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vishwa

• Nov 16th, 2006

Yes, Mail can be overriden, but not overlaoded

Me

• Oct 19th, 2006

I believe that you may be able to override main (I haven't actually tried though..). I don't see why you'd get any linker errors if you re-def the entry point as a linker switch...Thoughts?Anybody have time to try? =D

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How will you write object into file using file concepts in C++?

Arman

• Jan 25th, 2018

You can write the object into file after serializing it. It is important to note that there are two types of objects: "persistence" and "non persistence". persistence objects are those which can be serialized and saved in file system.

hi

• Nov 9th, 2016

I think the final fobj.display_detail(); in your code needs to change to eobj.display_detail();

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A

moonlight100783

 Profile Answers by moonlight100783 Questions by moonlight100783

• Jan 20th, 2008

To add...When a template is specialized as above, it is mandatory to define the same. The C++ compiler will not generate a class for the specialization.

michaelpyles

 Profile Answers by michaelpyles Questions by michaelpyles

• Dec 29th, 2007

You can force the instantiation of a specialization of the template by specifying a prototype somewhere in your code.  For example:template <class T> class A { T x; ...

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vidhudatta

 Profile Answers by vidhudatta Questions by vidhudatta

• Sep 23rd, 2009

Iterator is an object that allows the programmer to traverse through the entire collection.

shwetashreemal

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• Jul 25th, 2009

Iterator is a class that is used to traverse through the objects maintained by a container class.these are five types are:-1.Input iterator2.output iterator3.forward iterator4.bidirectional iterator5....

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Girish

• Jul 20th, 2017

We cannot have two variables with the same name in the same scope. To resolve this namespace is introduced. Namespace is a declarative region that provides a scope to the identifiers inside it. Acces...

dinu

• Oct 3rd, 2016

Suppose we have two libraries lib1 and lib2. let there is a function add() present in both of them, this function can have different meaning or functionality in both libraries but they have same name...

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yzesong

 Profile Answers by yzesong Questions by yzesong

• Aug 1st, 2009

In a proces which issues wait( ) will suspend itself until either a certain process terminated(wait(n), n is PID) or all process terminated (wait()). Delay is like pausing for a certain period of time, same as sleep( ).

3bu1

• Aug 21st, 2007

Wait()....event triggereddelay()....time trigerred

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Guest

• Jan 5th, 2007

This is a trick question. Should you allocate memory using malloc or new is a question that is only pertinent to C++. So if you allocate memory using malloc in C++ then you should be using free to dea...

Nihar

• Sep 18th, 2006

Yes , you can do it. But you should not do it. This is "Bad De-allocation" a security flaw. The way ?new? allocates and Delete ?de-allocates? are completely different from malloc and free. Program will show abnormal behavior it has been observed.

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kalayama

 Profile Answers by kalayama Questions by kalayama

• Dec 5th, 2006

Well, the static variable should not be accessed from outside the file in hich it is defined. That's how static is defined.The intended purpose of static is to make the variable "invisible" to other programs.Hence you must use extern if you want to access it across files.Cheers,Kalayama

Arun

• Nov 30th, 2006

Hi,  We can't able to use more than one storage class specifier in same variable.Regards,ARUN

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