C++ examples for Class:Class Creation
Using class to model a time data type
#include <iostream> using namespace std; class time/*from ww w. jav a 2 s . c o m*/ { private: int hrs, mins, secs; public: time() : hrs(0), mins(0), secs(0) //no-arg constructor { } //3-arg constructor time(int h, int m, int s) : hrs(h), mins(m), secs(s) { } void display() const //format 11:59:59 { cout << hrs << ":" << mins << ":" << secs; } void add_time(time t1, time t2) //add two times { secs = t1.secs + t2.secs; //add seconds if( secs > 59 ) //if overflow, { secs -= 60; mins++; } // carry a minute mins += t1.mins + t2.mins; //add minutes if( mins > 59 ) //if overflow, { mins -= 60; hrs++; } // carry an hour hrs += t1.hrs + t2.hrs; //add hours } }; int main() { const time time1(5, 59, 59); //creates and initialize const time time2(4, 30, 30); // two times time time3; //create another time time3.add_time(time1, time2); //add two times cout << "time3 = "; time3.display(); //display result cout << endl; return 0; }