C++ Program to Conversion program using Fucntions
#include <iostream.h>
#include <stdlib.h>
char choosestd;
float inch1;
float inch2;
float foot;
float yard;
float mile;
float millimeter;
float centimeter;
float meter1;
float meter2;
float kilometer;
int first;
float firstfunction();
float secondfunction();
float thirdfunction();
float fourthfunction();
float fifthfunction();
float sixthfunction();
float seventhfunction();
float eigthfunction();
float ninthfunction();
float tenthfunction();
int main()
{
clrscr();
cout << "*-------------------------------------------------------------*\n";
cout << " \n\n\n";
cout << "To (q)uit any time type enter \"q\"\n\n";
cout << "To convert from Standard Measurments to Metric enter \"1\": \n";
cout << "To convert from Metric to Standard Measurments enter \"2\": \n";
cin >> first;
if (first == 1)
{
int choosestd;
cout << "What would you like to convert?\n";
cout << "(1)Inches to Millimeters: \n";
cout << "(2)Inches to Centimeters: \n";
cout << "(3)Feet to Meters: \n";
cout << "(4)Yards to Meters: \n";
cout << "(5)Miles to Kilometers: \n";
cin >> choosestd;
if (choosestd == 1)
{
cout << "\nEnter the number of inches you wish converted: \n";
cin >> inch1;
cout << "You entered " << inch1 ;
cout<< " inches, which equals " << firstfunction() << " millimeters.\n\n";
system("PAUSE");
return main();
}
else if (choosestd == 2)
{
cout << "\nEnter the number of inches you wish converted: \n";
cin >> inch2;
cout << "You entered " << inch2 << " inches, which equals " << secondfunction() << " centimeters.\n\n";
system("PAUSE");
return main();
}
else if (choosestd == 3)
{
cout << "\nEnter the number of feet you wish converted: \n";
cin >> foot;
cout << "You entered " << foot << " feet, which equals " << thirdfunction() << " meters.\n\n";
system("PAUSE");
return main();
}
else if (choosestd == 4)
{
cout << "\nEnter the number of yards you wish converted: \n";
cin >> yard;
cout << "You entered " << yard << " yards, which equals " << fourthfunction() << " meters.\n\n";
system("PAUSE");
return main();
}
else if (choosestd == 5)
{
cout << "\nEnter the number of miles you wish converted: \n";
cin >> mile;
cout << "You entered " << mile << " miles, which equals " << fifthfunction() << " kilometers.\n\n";
system("PAUSE");
return main();
}
else if ((choosestd != 1) || (choosestd !=2) || (choosestd !=3) || (choosestd !=4) || (choosestd !=5))
{
cout<<endl;
cout << "\n\nThank you for using this program.\n\n";
cout<<"endl";
getch();
return 0;
}
}
else if (first == 2)
{
int choosestd;
cout << "What would you like to convert?\n";
cout << "(1)Millimeters to Inches: \n";
cout << "(2)Centimeters to Inches: \n";
cout << "(3)Meters to Feet: \n";
cout << "(4)Meters to Yards: \n";
cout << "(5)Kilometers to Miles: \n";
cin >> choosestd;
if (choosestd == 1)
{
cout << "\nEnter the number of millimeters you wish converted: \n";
cin >> millimeter;
cout << "You entered " << millimeter << " millimeters, which equals " << sixthfunction() << " inches.\n\n";
system("PAUSE");
return main();
}
else if (choosestd == 2)
{
cout << "\nEnter the number of centimeters you wish converted: \n";
cin >> centimeter;
cout << "You entered " << centimeter << " centimeters, which equals " << seventhfunction() << " inches.\n\n";
system("PAUSE");
return main();
}
else if (choosestd == 3)
{
cout << "\nEnter the number of meters you wish converted: \n";
cin >> meter1;
cout << "You entered " << meter1 << " meters, which equals " << eigthfunction() << " feet.\n\n";
system("PAUSE");
return main();
}
else if (choosestd == 4)
{
cout << "\nEnter the number of meters you wish converted: \n";
cin >> meter2;
cout << "You entered " << meter2 << " meters, which equals " << ninthfunction() << " yards.\n\n";
system("PAUSE");
return main();
}
else if (choosestd == 5)
{
cout << "\nEnter the number of kilometers you wish converted: \n";
cin >> kilometer;
cout << "You entered " << kilometer << " kilometers, which equals " << tenthfunction() << " miles.\n\n";
system("PAUSE");
return main();
}
else if ((choosestd != 1) || (choosestd !=2) || (choosestd !=3) || (choosestd !=4) || (choosestd !=5))
{
int x;
cout << "\n\nThank you for using this program.\n\n";
cin >> x;
return 0;
}
}
else if ((first != 1) || (first != 2))
{
int x;
cout << "End Program.\n\n\nThis program was brought to you by\n http://www.mcarterbrown.com\n\n\n";
cout << "Thank you\n\n\n";
cin >> x;
return 0;
}
}
float firstfunction()
{
double x;
x = (inch1 * 25.4);
return x;
}
float secondfunction()
{
double x;
x = (inch2 * 2.54);
return x;
}
float thirdfunction()
{
float x;
x = (foot * .3048);
return x;
}
float fourthfunction()
{
float x;
x = (yard * .9144);
return x;
}
float fifthfunction()
{
float x;
x = (mile * 1.609);
return x;
}
float sixthfunction()
{
float x;
x = (millimeter / 25.4);
return x;
}
float seventhfunction()
{
float x;
x = (centimeter / 2.54);
return x;
}
float eigthfunction()
{
float x;
x = (meter1 / .3048);
return x;
}
float ninthfunction()
{
float x;
x = (meter2 / .9144);
return x;
}
float tenthfunction()
{
float x;
x = (kilometer / 1.609);
return x;
}
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