Why “using namespace std” is not recommended ? and When we should declare a namespace ? 😎😎 What is namespace ? In brief, namespace is like a box, a group, a declarative region which contains objects/symbols like datatypes, functions, variables,… (namespace scope).

Who INSERT/UPDATE/DELETE tables ?🤔🤔 Let’s hunt Data Manipulation Language (DML) 😎😎 For TCL (COMMIT/ROLLBACK) hunter, please check here

😎😎 Let’s have a quick look of using macros #ifdef, namespace,… in a project In this article, I’ll show you a simple way to manage Project Structure in case we have a big project, which supports for multiple clients (i.e : vietcombank, citibank). HOME/client/vietcombank/include : contains a specific client.h HOME/client/citibank/include…

😎😎 Welcome to the OOP world via a Pokemon example 😎😎 OOP is one of the must-have feature of any programing languages, and must-know for any developers. Let’s make an example here we have “Pokemon” as a base class, under it we have “Electric/Grass/Fire/Water” are derived classes which inherited from…

1 dimension, 2 dimensions, C-style string Overview Array is a collection of elements with the same datatype. The size of array is fixed when declare and unchanged (static array) C++ stores array in a continous memory location. 1. One dimensional array Each memory cell in RAM has a size of 4 bytes i.e : salary…

if-else, switch-case, for loop, while loop, break, goto, try-catch,… Overview

pass by value, pass by reference, pass by address, extern keyword, prototype,… Overview How many ways to call a function ? There are 3 ways to call a function