Question

I’m new to C# and have made a few working console applications such as Hello World and a BMI Calculator.

I’m trying to make a weight converter from imperial to metric and vice versa now, but I’m having trouble letting the user choose which they would like to do. This is the segment of code I am struggling with:

decimal pounds;
decimal poundsconverted;
decimal kilo;
decimal kiloconverted;
string choice;

Console.WriteLine ("Press 1 to convert from imperial to metric");
Console.WriteLine ("Press 2 to convert from metric to imperial");
choice = Console.ReadLine();

if (choice (1))
    Console.WriteLine ("Please enter the weight you would like to convert in pounds (lbs) ex. 140");
    pounds = Convert.ToDecimal (Console.ReadLine());
    poundsconverted=pounds/2.2;
    Console.WriteLine("The weight in kilograms is:{0:F3}", poundsconverted);

if (choice (2))
    Console.WriteLine ("Please enter the weight you would like to conver in kilograms (kg) ex. 80");
    kilo = Convert.ToDecimal (Console.ReadLine());
    kiloconverted=pounds*2.2;
    Console.WriteLine("The weight in pounds is:{0:F3}", kiloconverted);

My problem is with the if statements. I have tried multiple formats but to no avail. Is there a better method to do this? is it possible with if statements?

Answer 1

use switch/ case or if/else here is the sample for switch/case

decimal pounds;
decimal poundsconverted;
decimal kilo;
decimal kiloconverted;
string choice;


Console.WriteLine ("Press 1 to convert from imperial to metric");
Console.WriteLine ("Press 2 to convert from metric to imperial");
choice = Console.ReadLine();
switch (choice)
{
   case 1:
     Console.WriteLine ("Please enter the weight you would like to convert in pounds (lbs) ex. 140");
        pounds = Convert.ToDecimal (Console.ReadLine());
        poundsconverted=pounds/2.2;
        Console.WriteLine("The weight in kilograms is:{0:F3}", poundsconverted);
        break;
   case 2:
      Console.WriteLine ("Please enter the weight you would like to conver in kilograms (kg) ex. 80");
        kilo = Convert.ToDecimal (Console.ReadLine());
        kiloconverted=pounds*2.2;
        Console.WriteLine("The weight in pounds is:{0:F3}", kiloconverted);
        break;
}