Which purpose should the following line serve in a C++ program? #include

For which circumstance should you use the preprocessor directive #include <iostream> in your C++ program?

A structure item exists in your code with integer member units. Given the following variable declaration, how should you access the value of units? item * myItem;.

Right way to place an opening curly bracket in C++?

Difference between the following? int a(0); and int a = 0;

Which is the content of vector v in code? std::vector v(4); std::fill(v.begin(), v.end(), 4);

The heading of the function is also called the ____.

The expression x < y is called a(n) ________ expression.

The do-while loop is a(n) ________ loop, whereas the while loop is a(n) ________ loop.

The destructor function's return type is ________.

The conditional and operator in java, c++, and c# is ____.