Answer to Question #149492 in C++ for Prajjwal Tiwari

Question

Class Distance consists of length in feet and inches. Class Distance contains

1. one default constructor

II. one parameterized constructor

III. Function getdata () to take the value of feet and inches.

IV. Function show () to display.

V. Overload += operator in the Distance class.

Overload < operator to compare two distances.

Answer 1

#include <iostream>

using namespace std;

class Distance {
private:
    int feet;
    int inch;
public:
    Distance() : feet(0), inch(0) {};
    Distance(int ft, int in) : feet(ft) {
        feet += in / 12;
        inch = in % 12;
    };

    void getdata(int ft, int in) {
        feet = ft + in / 12;
        inch = in % 12;
    };


    void show() {
        cout << feet << " ft  " << inch << " in" << endl;
    };

    Distance& operator+=(const Distance& r) {
        feet += r.feet;
        inch += r.inch;
        feet = feet + inch / 12;
        inch = inch % 12;
        return *this;
    };


    friend bool operator<(const Distance& l, const Distance& r) {
        return l.feet * 12 + l.inch < r.feet * 12 + r.inch;
    };
};

int main()
{
    Distance d1;
    Distance d2(2, 13);
    cout << "d1 = ";  d1.show();
    cout << "d2 = "; d2.show();
    cout << "d1.getdata(3, 1);" << endl;
    cout << "d2 += Distance(1,0);" << endl;
    d1.getdata(3, 1);
    d2 += Distance(1, 0);
    if (d1 < d2) {
        cout << "Distance d1 is less than d2." << endl;
    }
    else {
        cout << "Distance d1 not less than d2." << endl;
    }

    cout << "d2.show();" << endl;
    d2.show();
}