character array of variable size cpp code example

Example 1: how to find the size of a character array in c++

Instead of sizeof() for finding the length of strings or character 
arrays, just use strlen(string_name) with the header file
#include <cstring>   
it's easier.

Example 2: why cin take more characters then the size of array in C++

why cin take more characters then the size of array in C++