Predict the output of following C++ program
#include<iostream> using namespace std;
class Empty {}; int main()
{
cout <<sizeof(Empty); return 0;
}

Related MCQs

• 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; }
• What will be the output of following program? #include <iostream> using namespace std; class Test{ public: Test() { cout <<"Hello from Test() "; } } a; int main() { cout <<"Main Started "; return 0; }
• Predict the output? #include <iostream> using namespace std; class Test { int x; Test() { x = 5;} }; int main() { Test *t = new Test; cout <<t->x; }
• Output of following program? #include<iostream> using namespace std; class Point { Point() { cout <<"Constructor called"; } }; int main() { Point t1; return 0; }
• #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; int main() { int a; a = 5 + 3 * 5; cout <<a; return 0; }
• #include<iostream> using namespace std; class Point { public: Point() { cout <<"Constructor called"; } }; int main() { Point t1, *t2; return 0; }
• 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; }
• class Test { int x; }; int main() { Test t; cout <<t.x; return 0; }
• Which of the following is the correct class of the object cout?