C++ examples for Class:object
Average an array of Measure objects input by user
#include <iostream> using namespace std; class Measure // English Measure class { private://www .j a v a2 s . c om int feet; float inches; public: Measure() { feet = 0; inches = 0; } Measure(int ft, float in) { feet = ft; inches = in; } void getdist() //get length from user { cout << "\nEnter feet: "; cin >> feet; cout << "Enter inches: "; cin >> inches; } void showdist() { cout << feet << "\'-" << inches << '\"'; } void add_dist( Measure, Measure ); //declarations void div_dist( Measure, int ); }; //add Measures d2 and d3 void Measure::add_dist(Measure d2, Measure d3) { inches = d2.inches + d3.inches; //add the inches feet = 0; //(for possible carry) if(inches >= 12.0) //if total exceeds 12.0, { //then decrease inches inches -= 12.0; //by 12.0 and feet++; //increase feet } //by 1 feet += d2.feet + d3.feet; //add the feet } //divide Measure by int void Measure::div_dist(Measure d2, int divisor) { float fltfeet = d2.feet + d2.inches/12.0; //convert to float fltfeet /= divisor; //do division feet = int(fltfeet); //get feet part inches = (fltfeet-feet) * 12.0; //get inches part } int main() { Measure distarr[100]; //array of 100 Measures Measure total(0, 0.0), average; //other Measures int count = 0; //counts Measures input char ch; //user response character do { cout << "\nEnter a Measure"; //get Measures distarr[count++].getdist(); //from user, put cout << "\nDo another (y/n)? "; //in array cin >> ch; }while( ch != 'n' ); for(int j=0; j<count; j++) //add all Measures total.add_dist( total, distarr[j] ); //to total average.div_dist( total, count ); //divide by number cout << "\nThe average is: "; //display average average.showdist(); cout << endl; return 0; }