Answer / qapoo

A function is declared virtual in base class when u are
having same functions in both base and derived classes and
you want to access both the functions with same function
call and its done using base class pointer.
e.g
class base
{
public:
void show(){cout<<"hi"};
};
class derived:pubic base
{
public:
void show(){cout<<"bye";}
};
int main()
{
base *ptr;
base b;
derived d;
ptr=&b;
ptr->show();//base class fn is called
ptr=&d;
ptr->show();//derived class fn is called
return 0;
}

Answer / nikhil kapoor

The function which supports run time polymorphysm is called
virtual function...

Objective The objective of this problem is to test the understanding of Object-Oriented Programming (OOP) concepts, in particular, on encapsulation. Problem Description Create a program for managing customer’s bank accounts. A bank customer can do the following operations: 1. Create a new bank account with an initial balance. 2. Deposit money into his/her account. 3. Withdraw money from his/her account. For this operation, you need to output “Transaction successful” if the intended amount of money can be withdrawn, otherwise output “Transaction unsuccessful” and no money will be withdrawn from his/her account. Input The input contains several operations and is terminated by “0”. The operations will be “Create name amount”, “Deposit name amount”, or “Withdraw name amount”, where name is the customer’s name and amount is an integer indicating the amount of money. There will be at most 100 bank accounts and they are all created on the first month when the bank is opening. You may assume that all account holders have unique names and the names consist of only a single word. Output The output contains the transaction result of withdrawal operations and the final balance of all customers after some withdrawal and deposit operations (same order as the input). Sample Input Create Billy 2500 Create Charlie 1000 Create John 100 Withdraw Charlie 500 Deposit John 899 Withdraw Charlie 1000 0

0 Answers  

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Describe what an Interface is and how it?s different from a Class.

7 Answers   Spinsys,

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Can you name some types of inheritance?

1 Answers   Motorola,

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In which Scenario you will go for Interface or Abstract Class?

1 Answers   InfoAxon Technologies,

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create a c++ program that will accepts 9 inputs using 3 by 3 array.

1 Answers  

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#include <iostream> using namespace std; struct wow { int x; }; int main() { wow a; a.x = 22; int c = a.x; int *b = new int; cout << c; return 0; } option: No output 0 22 -(11) Will not compile

1 Answers   CTS, Wipro,

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some one give d clear explanation for polymorphism

3 Answers  

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What is abstraction in oop?

0 Answers  

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What is oops in simple words?

0 Answers  

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What is the concept of object oriented program?

6 Answers  

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Difference between new operator and operator new

2 Answers  

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for example A,B,C,D are class all the 4 class contain one method who() but the method who() implementaion is differnet among each class. the relation among the 4 class are A is base class and is inherited by B and C.and from this two B and C where D is inherited. the question is i want to display the output who() method in all the classes(A,B,C,D)the output of who() method is diferrent amond all the class(A,B,C,D) ------A------ virtuval who(print a) override | | who(print b) B C override who(print c) | | -------D------ override who(print d)

2 Answers  

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