Question

How to format decimal places in C#

Answer 1

using System;

class Program
{
    static void Main() {
        Console.WriteLine(String.Format("{0:0.00}", 1238.4567));
        
        Console.WriteLine(String.Format("{0:0.00}", 1238.5));
        
        Console.WriteLine(String.Format("{0:0.00}", 1238.0));
    }
}




/*
run:

1238.46
1238.50
1238.00

*/

 

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Answer 2

using System;

class Program
{
    static void Main() {
        Console.WriteLine(String.Format("{0:0.##}", 1238.4567));
        
        Console.WriteLine(String.Format("{0:0.##}", 1238.5));
        
        Console.WriteLine(String.Format("{0:0.##}", 1238.0));
    }
}




/*
run:

1238.46
1238.5
1238

*/

 

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Answer 3

using System;

class Program
{
    static void Main() {
        Console.WriteLine(String.Format("{0:00.0}", 1238.4567));
        Console.WriteLine(String.Format("{0:00.0}", 123.4567));
        
        Console.WriteLine(String.Format("{0:00.0}", 1247.5));
        Console.WriteLine(String.Format("{0:00.0}", 1247.0));
        
        Console.WriteLine(String.Format("{0:00.0}", 3.14159));
        Console.WriteLine(String.Format("{0:00.0}", -3.14159));
    }
}




/*
run:

1238.5
123.5
1247.5
1247.0
03.1
-03.1

*/

 

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Answer 4

using System;

class Program
{
    static void Main() {
        Console.WriteLine(String.Format("{0:0,0.0}", 1238.4567));
        
        Console.WriteLine(String.Format("{0:0,0.0}", 12390.4467));
        
        Console.WriteLine(String.Format("{0:0,0.0}", 123907.4567));
        
        Console.WriteLine(String.Format("{0:0,0.0}", 1247.4));
        
        Console.WriteLine(String.Format("{0:0,0.0}", 1247.0));
    }
}




/*
run:

1,238.5
12,390.4
123,907.5
1,247.4
1,247.0

*/

 

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