Formatted numeric output

Express a number in decimal as a fixed-length string with leading zeros.

For example, the number 7.125 could be expressed as "00007.125".

Ada

with Ada.Text_Io.Editing; use Ada.Text_Io.Editing;
with Ada.Text_Io; use Ada.Text_Io;

procedure Zero_Fill is
   Pic_String: String := "<999999.99>";
   Pic : Picture := To_Picture(Pic_String);
   type Money is delta 0.01 digits 8;
   package Money_Output is new Decimal_Output(Money);
   use Money_Output;
   
   Value : Money := 37.25;
begin
   Put(Item => Value, Pic => Pic);
end Zero_Fill;

The output of this program is

000037.25

C

void printit(int val)
{
    printf ("%08d", val);    // Prints 8 digits with leading zeros
}

JavaScript

var n = 123
var str = ("00000"+m).slice(-5)
alert(str)

//or, put in browser URL: javascript:n=123;alert(("00000"+n).slice(-5))

Perl

Interpreter: Perl v5.x

my $num = 123.45
my $pad = '0' x (5 - length(int($num))) . $num;
# $pad is now 00123.45

Python

#tested in Python 2.4.1
n = 123
str = "%05d" % n  #5 places wide, leading zeros
print n, str
#output: 123 00123

SQL

--Tested MS SQL 2005
declare @n int
select @n=123
select substring(convert(char(5), 10000+@n),2,4) as FourDigits

set @n=5
print "TwoDigits: " + substring(convert(char(3), 100+@n),2,2)
--Output: 05