This is a brief tutorial/overview on header files used in C++. In C++, you can declare a method or class using forward prototype before int main() [like so: int function(int x);] or you can declare them using a header. A header file is essentially a file that holds declarations of methods/functions, other .cpp files, classes, and other header files. Header files end in .h and its a way to organise code and other files, libraries, and packages of a C++ program that you would use. When declarations are done in a header file, it makes using the implementation in the main classes of the program more manageable.
For example, if you wanted to include a header file that has declarations already, simply add the line of code: #include « declarations.h »
The sample code below displays how methods, classes, and other header files are declared in a header file; as well as…
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