#include using namespace std; /* A simple codes that can help you understanding about constructor upvote and comments, thx ヽ(´▽｀)/ */ class myClass { private: string objectName; public: void setname(string name) { objectName = name; } string getname() { return objectName; } // An example for constructor /////////////////////////////////////////////// myClass(string name) // Constructor.. { setname(name); // call function setname(); cout << "Hello, i'am your classmates, " << getname() << "\n\n"; } /* Syntax: className(parameter) { some codes...... } Constructor name must same as the class name... */ /////////////////////////////////////////////// };// dont forgot to put semicolon int main() { // Syantax: // ClassName ObjectName(Parameter); myClass mizuki("Mizuki.."); myClass bean("Bean.."); myClass andy("Andy.."); return 0; } /* After we make a constructors as before, we dont need to making "cout (hello, i am your...), setname, getname" for every person (Mizuki,Bean,Andy) on myClass. Because the code on constructor myClass will be excuted automatically after the object has been created just like we made as before. How it works? Example for myClass mizuki("Mizuki.."); We made myClass object called mizuki and passing a string using parameter ("Mizuki..") to myClass. The constructor will be excuted automatically and how it look will be like this.. myClass("Mizuki..") { setname("Mizuki.."); cout << "Hello, i'am your classmates, " << getname() << "\n\n"; } After the constructor completed excuted. The compiler will jump back to main() and continue to excute another code after semicolon on mizuki("Mizuki.."); */

A simple code about constructor on C++ (Explanation)