Display positive, negative, and zero values differently : double Format « Data Type « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Data Type
3. double Format

using System;  

class MainClass {  
  public static void Main() {  
    double num = 64354.2345; 

    Console.WriteLine("Default format: " + num); 

    Console.WriteLine("Display positive, negative, " + 
                      "and zero values differently."); 
    Console.WriteLine("{0:#.#;(#.##);0.00}", num); 
    num = -num; 
    Console.WriteLine("{0:#.##;(#.##);0.00}", num); 
    num = 0.0; 
    Console.WriteLine("{0:#.##;(#.##);0.00}", num); 
  } 
}

Default format: 64354.2345
Display positive, negative, and zero values differently.
64354.2
(64354.23)
0.00