Round double for different levels - CSharp Language Basics

CSharp examples for Language Basics:double

  1. HOME
  2. CSharp
  3. Language Basics
  4. double

Description

Round double for different levels

Demo Code

using System;//from w  ww  .  ja  v  a  2  s  . com
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
class Program
{
   static void Main(string[] args)
   {
      // Input
      Console.Write("Enter (decimal) amount in dollars: ");
      string input = Console.ReadLine();
      double amount = Convert.ToDouble(input);
      // To dollars
      double nearest    = Math.Round(amount);
      double alwaysDown = Math.Floor(amount);
      double alwaysUp   = Math.Ceiling(amount);
      Console.WriteLine("Nearest    : " + nearest);
      Console.WriteLine("Always down: " + alwaysDown);
      Console.WriteLine("Always up  : " + alwaysUp);
      // To cents
      nearest    = Math.Round(amount, 2);
      alwaysDown = Math.Floor(100 * amount) / 100;
      alwaysUp   = Math.Ceiling(100 * amount) / 100;
      Console.WriteLine("Nearest    : " + nearest);
      Console.WriteLine("Always down: " + alwaysDown);
      Console.WriteLine("Always up  : " + alwaysUp);
      // To hundreds of dollars
      nearest    = 100 * Math.Round(amount / 100);
      alwaysDown = 100 * Math.Floor(amount / 100);
      alwaysUp   = 100 * Math.Ceiling(amount / 100);
      Console.WriteLine("Nearest    : " + nearest);
      Console.WriteLine("Always down: " + alwaysDown);
      Console.WriteLine("Always up  : " + alwaysUp);
   }
}

Result


Related Tutorials