Which of the following is true?

C++ is a pure object oriented programming language.

What is output?

One can apply pointer arithmetic with reference variables. 

What makes a class abstract?

 A class is a basic unit of object-oriented programming.

Which of the following statements are correct about this function

What is output?

Kết quả đoạn lệnh sau là bao nhiêu? 

Evaluate !(1 && !(0 || 1))

What gets printed?

Kết quả đoạn lệnh sau là bao nhiêu? 

Kết quả đoạn lệnh sau là bao nhiêu? 

Operator overloading permits to extend the applicability of existing C++ operators so that they work with new ___ or ___.

Which of the following is a properly defined struct?

What is output?

What is output?

Kết thúc một dòng lệnh trong chương trình C++, ta sử dụng ký hiệu gì?

What is output?

 Which of the following adds one string to the end of another?

What value is returned by function func()?