Identify the user-defined types from the following?

Related Questions

• Which of the following is true about templates? 1) Template is a feature of C++ that allows us to write one code for different data types. 2) We can write one function that can be used for all data types including user defined types. Like sort(), max(), min(), ..etc. 3) We can write one class or struct that can be used for all data types including user defined types. Like Linked List, Stack, Queue,..etc. 4) Template is an example of compile time polymorphism.
• It is possible to define a class within a class termed as nested class. There are _____ types of nested classes.
• When are the pointer types known for upcasting the objects?
• Which of the following is true about constructors? 1) They cannot be virtual. 2) They cannot be private. 3) They are automatically called by new operator.
• Output of following program? #include<iostream> using namespace std; class Point { Point() { cout << "Constructor called"; } }; int main() { Point t1; return 0; }
• Which of the following is FALSE about references in C++?
• Which of the following functions must use reference?
• Output of following C++ program? #include<iostream> using namespace std; int main() { int x = 10; int& ref = x; ref = 20; cout << "x = " << x << endl ; x = 30; cout << "ref = " << ref << endl; return 0; }
• Predict the output of following C++ program. #include<iostream> using namespace std; class Empty {}; int main() { cout << sizeof(Empty); return 0; }
• Which of the following is true?