Answer / poonam

yes,we can declare the object of one class into another class. The kind of relationship is called Containership or nesting. this is one of the best feature of c++ which allow inheritence and reusability.
for eg:
class alpha {.....};
class beta {....};
class gamma
{
alpha a;
beta b;
...
};


Creation of one object into another is very different from that of an independent object. Independent object is created
by cnstructors when declared with the arguments.


for further details refer c++ by balguruswamy page no.240

what is the difference between int &r and int& r

3 Answers  

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write a c program, using for loop, that accepts and odds two numbers. The output must be the sum and the addens. This should be repeated 5 times while the first number is decremented by one and the second number is incremented by 1.

2 Answers   IBM, Infosys,

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Write a (n) algorithm that sorts n distinct integers, ranging in size between 1 and kn inclusive, where k is a constant positive integer. (Hint: Use a kn-element array.)

0 Answers  

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A research student is given a singly-linked list. Each node of the list has a color, which is either “Black” or “White”. He must find if there are more black nodes than white nodes, or vice versa. His advisor gives him 5,000Rs to buy a computer to do the work. He goes to the computer store and finds a slightly defective computer which costs a mere 3,000Rs. This computer has the small problem of not being able to do arithmetic. This means that he cannot use a counter to count the nodes in the list to determine the majority color. The computer is otherwise fully functional. He has the evil idea that he could buy the defective computer and somehow use it to do his work, so that he can use the rest of the money on enjoyment. Show how he can accomplish this amazing task. Write code for an algorithm called ‘findMajorityColor’ which takes a singly-linked list, L, with n nodes and returns the majority color among nodes of L. This algorithm should have the same asymptotic running time as counting the nodes (O(n)). Note: No arithmetic is allowed.

2 Answers  

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what mean void creat_object?in public class in this code class A{ public: int x; A(){ cout << endl<< "Constructor A";} ~A(){ cout << endl<< "Destructor A, x is\t"<< x;} }; void create_object(); void main() { A a; a.x=10; { A c; c.x=20; } create_object(); } void create_object() { A b; b.x=30; }

0 Answers  

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readers and writers problem

1 Answers   Cognizant,

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Ask the user to input three positive integers M, N and q. Make the 2 dimensional array of integers with size MxN, where all the elements of I (I = 1,…,M) line will be members of geometrical progression with first element equal to the number of line (I) and denominator q.

0 Answers  

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Code for Small C++ Class to Transform Any Static Control into a Hyperlink Control?

0 Answers   Wipro,

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A suduco given & u hv 2 check if it is incomplete(blanks left),or correct or incorrect

0 Answers  

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Code for Two Classes for Doing Gzip in Memory?

0 Answers  

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void main() { int i,j=2; for(i=0;i<3;i++) if(j=i) cout<<"Lotus "; else cout<<"Rose "; } Its result is Rose Lotus Lotus.. How? Explain it?

2 Answers  

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1.program to add any two objects using operator overloading 2.program to add any two objects using constructors 3.program to add any two objects using binary operator 4.program to add any two objects using unary operator

2 Answers   IBM,

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