How to format a number 0..9 to display with 2 digits (it's NOT a date)

Question

I\'d like to always show a number under 100 with 2 digits (example: 03, 05, 15...)

How can I append the 0 without using a conditional to check if it\'s under 10?

Answer 1

The String class comes with the format abilities:

System.out.println(String.format("%02d", 5));

for full documentation, here is the doc