Aim: To implement a program to convert distance given in feet and inches into meters and centimeters and vice versa.

Code:                      

class mcm;

class inchft

{

            float ft;

            float inch;

            public:

            friend void convert(inchft,mcm);

};

class mcm

{

            float m;

            float cm;

            public:

            friend void convert(inchft,mcm);

};

void convert(inchft a,mcm b)

{

            int ch,i,c;

            do

            {

                        cout<<"\n1.Feet & inches to Meters & centimeters";

                        cout<<"\n2. Meters & Centimeters to Feet & inches";

                        cout<<"\n0. Exit\nEnter choice:";

                        cin>>ch;

                        switch(ch)

                        {

                                    case 1:

                                    cout<<"Enter measurement in feet & inches:";

                                    cout<<"ft:";

                                    cin>>a.ft;

                                    cout<<"inch:";

                                    cin>>a.inch;

                                    cout<<"\nYou entered:"<

                                    i=(a.inch+(12.0*a.ft));

                                    c=2.5*i;

                                    c=ceil(c);

                                    b.cm=c%100;

                                    b.m=(c-b.cm)/100;

                                    cout<<"\n\nAfter conversion:"<

                                    break;

                                    case 2:

                                    cout<<"Enter measurement in meters & centimeters:";

                                    cout<<"m:";

                                    cin>>b.m;

                                    cout<<"cm:";

                                    cin>>b.cm;

                                    cout<<"\nYou entered:"<

                                    c=(b.cm+(100*b.m));

                                    i=0.4*c;

                                    i=ceil(i);

                                    a.inch=i%12;

                                    a.ft=(i-a.inch)/12;

                                    cout<<"\n\nAfter conversion:"<

                                    break;

                                    case 0:

                                    break;

                        }

            }while(ch!=0);

}

void main()

{

            clrscr();

            inchft a;

            mcm b;

           convert(a,b);

            getch();

}

Output:

1.Feet & inches to Meters & centimeters

2. Meters & Centimeters to Feet & inches

0. Exit

Enter choice:1

Enter measurement in feet & inches:ft:20

inch:10

You entered:20 ft 10 inches

After conversion:6 m 25 cm

1.Feet & inches to Meters & centimeters

2. Meters & Centimeters to Feet & inches

0. Exit

Enter choice:2

Enter measurement in meters & centimeters:m:6

cm:25

You entered:6 m 25 cm

After conversion:20 ft 10 inches

1.Feet & inches to Meters & centimeters

2. Meters & Centimeters to Feet & inches

0. Exit

Enter choice:0