MCQOPTIONS
Bookmark
Saved Bookmarks
→
Computer Science Engineering (CSE)
→
Software Design Modeling in Computer Science Engineering (CSE)
→
Which of the following is the correct class of th..
1.
Which of the following is the correct class of the object cout?
A.
iostream
B.
istream
C.
ostream
D.
ifstream
Answer» D. ifstream
Show Answer
Discussion
No Comment Found
Post Comment
Related MCQs
#include<iostream> using namespace std; class X { public: int x; }; int main() { X a = {10}; X b = a; cout <<a.x <<" " <<b.x; return 0; }
#include<iostream> using namespace std; class Point { public: Point() { cout <<"Constructor called"; } }; int main() { Point t1, *t2; return 0; }
Output of following program? #include<iostream> using namespace std; class Point { Point() { cout <<"Constructor called"; } }; int main() { Point t1; return 0; }
When a copy constructor may be called?
Which of the followings is/are automatically added to every class, if we do not write our own.
Is it fine to call delete twice for a pointer? #include<iostream> using namespace std; int main() { int *ptr = new int; delete ptr; delete ptr; return 0; }
What happens when delete is used for a NULL pointer? int *ptr = NULL; delete ptr;
Predict the output? #include <iostream> using namespace std; class Test { int x; Test() { x = 5;} }; int main() { Test *t = new Test; cout <<t->x; }
Which of the following is true about new when compared with malloc. 1) new is an operator, malloc is a function 2) new calls constructor, malloc doesn't 3) new returns appropriate pointer, malloc returns void * and pointer needs to typecast to appropriate type.
Which of the following is true about the following program #include <iostream> class Test { public: int i; void get(); }; void Test::get() { std::cout <<"Enter the value of i: "; std::cin >>i; } Test t; // Global object int main() { Test t; // local object t.get(); std::cout <<"value of i in local t: "<<t.i<<'\n'; ::t.get(); std::cout <<"value of i in global t: "<<::t.i<<'\n'; return 0; }
Reply to Comment
×
Name
*
Email
*
Comment
*
Submit Reply