Answer Posted / roshanpr

mutable key word is used when u want to make any member
variable of a const object modifyable.

Basically when u make a object constant u cannot modify its
data members. But during the declaration of the class if a
data member is declared as mutable it can changed.

Class my
{

mutable int age;

public:

my(){age=0;}
void plusplus(int b)const
{
age+=b;
}
};

int main()
{
const my obj;
obj.plusplus(40);
}

What do you mean by volatile and mutable keywords used in c++?

988

---

What are the various storage classes in C++?

1142

---

Explain some examples of operator overloading?

1124

---

What is object in c++ wikipedia?

1005

---

What is the importance of mutable keyword?

1024

---

What is meaning of in c++?

1218

---

Can char be a number c++?

1045

---

. If employee B is the boss of A and C is the boss of B and D is the boss of C and E is the boss of D. Then write a program using the Database such that if an employee name is Asked to Display it also display his bosses with his name. For eg. If C is displayed it should also display D and E with C?

3282

---

What is the purpose of ios::basefield in the following statement?

1259

---

Which ide is best for c++?

1049

---

Explain rethrowing exceptions with an example?

1026

---

What is lvalue?

1169

---

Can recursive program be written in C++?

1232

---

What is general form of pure virtual function? Explain?

1000

---

What is vectorial capacity?

1165

---