write a program to demonstrate,how constructor and
deconstructor work under multilevel inheritance
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Answer / kunalsahu
#include<iostream.h>
#include<conio.h>
class a
{
//Data
public:
a()
{
cout<<"class A Constructor\n" ;
}
~a()
{
cout<<"class A Destructor"<<endl;
}
};
class b:public a
{
//Data
public:
b()
{
cout<<"class B Constructor"<<endl;
}
~b()
{
cout<<"class B Destructor"<<endl;
}
};
class c:public b
{
//Data
public:
c()
{
cout<<"class C Constructor"<<endl;
}
~c()
{
cout<<"class C Destructor"<<endl;
}
};
int main()
{ clrscr();
//c *pCObj;
//pCObj=new c();
c k;
getch();
return 0;
}
/*O/p:
class A Constructor
class B Constructor
class C Constructor
class C Destructor
class B Destructor
class A Destructor */
| Is This Answer Correct ? | 7 Yes | 0 No |
Answer / nishi
Program is correct, only addition required is to call
destructor you need to call delete(pCObj) explicitly as you
have allocated memory dynamically.
| Is This Answer Correct ? | 8 Yes | 5 No |
Answer / archana
class a
{
//Data
public:
a(){cout<<"class A Constructor"<<endl}
~a(){cout<<"class A Destructor"<<endl}
};
class b:public a
{
//Data
public:
b(){cout<<"class B Constructor"<<endl}
~b(){cout<<"class B Destructor"<<endl}
};
class c:public b
{
//Data
public:
c(){cout<<"class C Constructor"<<endl}
~c(){cout<<"class C Destructor"<<endl}
};
int main()
{
c *pCObj;
pCObj = new c();
return 0;
}
O/p:
class A Constructor
class B Constructor
class C Constructor
class C Destructor
class B Destructor
class A Destructor
| Is This Answer Correct ? | 8 Yes | 9 No |
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