Idiom #156 Format integer with zero-padding

Assign to the string s the value of the integer i in 3 decimal digits. Pad with zeros if i < 100. Keep all digits if i ≥ 1000.

String s = "%03d".formatted(i);

import static java.text.NumberFormat.getIntegerInstance;
import java.text.NumberFormat;

NumberFormat f = getIntegerInstance();
f.setMinimumIntegerDigits(3);
f.setGroupingUsed(false);
String s = f.format(i);

String s = String.format("%03d", i);

(def s (format "%03d" i))

string s = string.Format("{0:000}",i);

import std.format : format;

string s = format("%03d", i);

var s = i.toString().padLeft(3,'0');

write (unit=s,fmt='(I0.3)') i

import "fmt"

s := fmt.Sprintf("%03d", i)

let s = i.toString();
if(i<100)
  s = ('00'+i).slice(-3);

string.format("%03d", i)

$s = sprintf('%03d', $i);

s := format('%.3d',[i]);

my $s = sprintf '%03d', $i;

s = format(i, '03d')

s = "%03d" % i

let s = format!("{:03}", i);

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Idiom created by programming-idioms.org

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