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Frequently Asked C++ interview questions and answers for freshers

(#M40028555) C++ QUESTION Technical Question on C++ and OOPS Keep an EYE

Which of the following statements is correct?

Options
1) First time method of a class is called, the constructor method is called.
2) Every time method of a class is called, the constructor method is called.
3) Every time an instance of a class is created, the constructor method is called.
4) None of the above

Asked In C++ MAN (12 years ago)

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(#M40031849) C++ QUESTION Keep an EYE

What will be the output for the following C++ program ..??

class Sample
{
public:
int *ptr;
Sample(int i)
{
ptr = new int(i);
}
~Sample()
{
delete ptr;
}
void PrintVal()
{
cout << "The value is " << *ptr;
}
};
void SomeFunc(Sample x)
{
cout << "Say i am in someFunc " << endl;
}
int main()
{
Sample s1= 10;
SomeFunc(s1);
s1.PrintVal();
}

Asked In C++ Rajendra Singh (11 years ago)

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(#M40155993) C++ QUESTION Keep an EYE

Pankaj makes a program to print the product of cubes of the first 10 whole numbers.

She writes the following program:

integer x = 0 // statement 1

integer x = 0 // statement 1

integer sum = 0 // statement 2

while ( x < 10 ) // statement 3

{

sum = x*x*x // statement 4


x = x + 1 // statement 5

}

print sum // statement 6


Is her program correct? If not, which statement will you modify to correct it?

a. No error, the program is correct

b. Statement 1

c. Statement 4

d. statement 6

Asked In C++ abhinav (9 years ago)

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(#M40028245) C++ QUESTION C++ programs Keep an EYE

Inheritance is also known as -------- relationship. Containership as ________ relationship

Asked In C++ MAN (12 years ago)

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(#M40028206) C++ QUESTION C++ Keep an EYE

What is destructors?

Asked In C++ MAN (12 years ago)

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(#M40028192) C++ QUESTION C++ Keep an EYE

What are the c++ tokens ?

Asked In C++ MAN (12 years ago)

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(#M40028217) C++ QUESTION C++ Keep an EYE

What is a container class? What are the types of container classes?

Asked In C++ MAN (12 years ago)

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(#M40028549) C++ QUESTION Technical Question on C++ and OOPS Keep an EYE

What will be the output of following program?

main()
{
int i=1;
for(;i<=32768;i++)
printf("%d",i);
}

Options
1) 32767
2) infinite loop
3) 32768
4) None of the above

Asked In C++ MAN (12 years ago)

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(#M40030279) C++ QUESTION C++ Keep an EYE

When should you use a const reference parameter?
a) Whenever the data type might be many bytes.
b) Whenever the data type might be many bytes,
the function changes the parameter within its
body, and you do NOT want these changes to
alter the actual argument.
c) Whenever the data type might be many bytes,
the function changes the parameter within its
body, and you DO want these changes to alter
the actual argument.
d) Whenever the data type might be many bytes,
and the function does not change the parameter
within its body

Asked In C++ MAN (11 years ago)

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(#M40028240) C++ QUESTION C++ programs Keep an EYE

class complex{
double re;
double im;
public:
complex() : re(1),im(0.5) {}
bool operator==(complex &rhs);
operator int(){}
};
bool complex::operator == (complex &rhs){
if((this->re == rhs.re) && (this->im == rhs.im))
return true;
else
return false;
}
int main(){
complex c1;
cout

Asked In C++ MAN (12 years ago)

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