Csharp/CSharp Tutorial/Development/Console Output Format

Format: {0,-10}

using System;
class MainClass
{
   static void Main()
   {
      double MyDouble = 12.345678;
      Console.WriteLine("{0,-10} -- Default, same as General", MyDouble);
   }
}

12.345678  -- Default, same as General

Format: {0,-10:C} -- Currency

using System;
class MainClass
{
   static void Main()
   {
      double MyDouble = 12.345678;
      Console.WriteLine("{0,-10:C} -- Currency", MyDouble);
   }
}

$12.35     -- Currency

Format: {0,-10:E3} -- Sci. Notation, 3 dec places

using System;
class MainClass
{
   static void Main()
   {
      double MyDouble = 12.345678;
      Console.WriteLine("{0,-10:E3} -- Sci. Notation, 3 dec places", MyDouble);
   }
}

1.235E+001 -- Sci. Notation, 3 dec places

Format: {0,-10:F4} -- Fixed Point, 4 decimal places

using System;
class MainClass
{
   static void Main()
   {
      double MyDouble = 12.345678;
      Console.WriteLine("{0,-10:F4} -- Fixed Point, 4 decimal places", MyDouble);
   }
}

12.3457    -- Fixed Point, 4 decimal places

Format: {0,-10:G}

using System;
class MainClass
{
   static void Main()
   {
      double MyDouble = 12.345678;
      Console.WriteLine("{0,-10:G} -- General", MyDouble);
   }
}

12.345678  -- General

Format: {0,-10:x} -- Hexadecimal integer

using System;
class MainClass
{
   static void Main()
   {
      Console.WriteLine("{0,-10:x} -- Hexadecimal integer", 1194719);
   }
}

123adf     -- Hexadecimal integer

Format: Allignment

using System;
class MainClass
{
   static void Main()
   {
      Console.WriteLine("|{0, 10}|", 999);      // Aligned right
      Console.WriteLine("|{0,-10}|", 000);      // Aligned left
   }
}

|       999|
|0         |

Format: Currency

using System;
class MainClass
{
   static void Main()
   {
      Console.WriteLine("The value: {0}.", 500);     // Print out number.
      Console.WriteLine("The value: {0:C}.", 500);   // Format as currency.
   }
}

The value: 500.
The value: $500.00.

Format double value

using System;  
  
class Example {  
  public static void Main() {  
    double s1 = 1231234.123412341234; 
    Console.WriteLine("{0:#.###}.", s1); 
 
  }  
}

1231234.123.

Numeric formatting specifiers

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;
public class MainClass
{
    public static void Main()
    {
        Console.WriteLine("C: {0}", 39.22M.ToString("C"));
        Console.WriteLine("D: {0}", 982L.ToString("D"));
        Console.WriteLine("E: {0}", 3399283712.382387D.ToString("E"));
        Console.WriteLine("F: {0}", .993F.ToString("F"));
        Console.WriteLine("G: {0}", 32.559D.ToString("G"));
        Console.WriteLine("N: {0}", 93823713.ToString("N"));
        Console.WriteLine("P: {0}", .59837.ToString("P"));
        Console.WriteLine("R: {0}", 99.33234D.ToString("R"));
        Console.WriteLine("X: {0}", 369329.ToString("X"));
    }
}

C: $39.22
D: 982
E: 3.399284E+009
F: 0.99
G: 32.559
N: 93,823,713.00
P: 59.84 %
R: 99.33234
X: 5A2B1

Use format commands: indicate the parameter sequence

using System; 
 
class Example {    
  public static void Main() {    
    int i; 
 
    Console.WriteLine("Value\tSquared\tCubed"); 
 
    for(i = 1; i < 10; i++) 
      Console.WriteLine("{0}\t{1}\t{2}",  
                        i, i*i, i*i*i); 
  }    
}

Value   Squared Cubed
1       1       1
2       4       8
3       9       27
4       16      64
5       25      125
6       36      216
7       49      343
8       64      512
9       81      729

Use the C format specifier to output dollars and cents.

using System;  
  
class Example {     
  public static void Main() {     
    decimal price;  
    decimal discount; 
    decimal discounted_price;  
  
    price = 19.95m;  
    discount = 0.15m;
 
    discounted_price = price - ( price * discount);  
  
    Console.WriteLine("Discounted price: {0:C}", discounted_price);  
  }     
}

Discounted price: $16.96