I am trying to format some c# output so that a number always has 2 digits for instance if int = 0 i would like Console.WriteLine(int); to produce 00.
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3 Answers
Take a look at http://msdn.microsoft.com/en-us/library/0c899ak8.aspx
This should do what you want:
int num = 10;
Console.WriteLine(num.ToString("0#"));
Console.ReadLine();
The string that is passed to the ToString method "0#" has the following meaning:
0 - 0 place holder, this will be replaced with relevant digit if one exists
# - digit place holder.
So if num is 0, 00 will be written to the console but if num is 10, 10 will be written to the console.
Comments
for example
for (int i = 0; i < 100; i++)
{
Console.WriteLine("{0:00}", i);
}
Comments
Take a look at this page, esp. the "Custom number formatting" section.
To show a number as two digits only you'd do something like this:
int x = 2;
string output = string.Format("{0:00}", x);
Console.WriteLine(output);
1 Comment
Ruben Steins
+1 for using string.Format instead of Console.WriteLine (more general solution)