IndiaBIX

C++ Programming - Constructors and Destructors

Exercise : Constructors and Destructors - Programs
6.
Which of the following statement is correct about the program given below? 
#include<iostream.h> 
class IndiaBix
{
    int *p; 
    public:
    IndiaBix(int xx, char ch)
    {
        p  = new int(); 
        *p = xx + int(ch); 
        cout<< *p;
    }
    ~IndiaBix() 
    {
        delete p;
    }
};
int main()
{
    IndiaBix objBix(10, 'B'); 
    return 0;
}
The program will print the output 76.
The program will print the output 108.
The program will print the output garbage value.
The program will report compile time error.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
Which of the following constructor is used in the program given below? 
#include<iostream.h> 
class IndiaBix
{
    int x, y; 
    public:
    IndiaBix(int xx = 10, int yy = 20 )
    {
        x = xx; 
        y = yy;
    }
    void Display()
    {
        cout<< x << " " << y << endl;
    } 
    ~IndiaBix()
    { } 
};
int main()
{
    IndiaBix objBix; 
    objBix.Display(); 
    return 0;
}
Copy constructor
Simple constructor
Non-parameterized constructor
Default constructor
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
What will be the output of the following program? 
#include<iostream.h>
class BixBase
{   
    public:
    BixBase()
    {
        cout<< "Base OK. "; 
    }
};
class BixDerived: public BixBase
{
    public:
    BixDerived()
    { 
        cout<< "Derived OK. "; 
    }
    ~BixDerived()
    { 
        cout<< "Derived DEL. "; 
    }
};
int main()
{
    BixBase    objB;
    BixDerived objD;
    objD.~BixDerived();
    return 0;
}
Base OK. Derived OK. Derived DEL.
Base OK. Base OK. Derived OK. Derived DEL.
Base OK. Derived OK. Derived DEL. Derived DEL.
Base OK. Base OK. Derived OK. Derived DEL. Derived DEL.
The program will report compile time error.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
What will be the output of the following program? 
#include<iostream.h> 
class IndiaBix
{
    int x, y; 
    public:
    IndiaBix(int xx)
    {
        x = ++xx;
    } 
    ~IndiaBix()
    {
        cout<< x - 1 << " ";
    }
    void Display()
    {
        cout<< --x + 1 << " ";
    } 
};
int main()
{
    IndiaBix objBix(5);
    objBix.Display();
    int *p = (int*) &objBix;
    *p = 40;
    objBix.Display();
    return 0; 
}
6 6 4
6 6 5
5 40 38
6 40 38
6 40 39
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
What is the technical word for the function ~IndiaBix() defined in the following program? 
#include<iostream.h> 
class IndiaBix
{
    int x, y; 
    public:
    IndiaBix(int xx = 10, int yy = 20 )
    {
        x = xx; 
        y = yy;
    }
    void Display()
    {
        cout<< x << " " << y << endl;
    } 
    ~IndiaBix()
    { } 
};
int main()
{
    IndiaBix objBix; 
    objBix.Display(); 
    return 0;
}
Constructor
Destructor
Default Destructor
Function Template
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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