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   I need to append the result to another String  so I cannot use printf

User · Answer

If you need to print the number you can use printf  System out printf   02d   num     You can use  String format   02d   num     or   num  lt  10    0          num    or       100 num   substring 1

User · Answer

The String class comes with the format abilities   System out println String format   02d   5      for full documentation  here is the doc

User · Answer

You can use this     NumberFormat formatter   new DecimalFormat  00      String s   formatter format 1      ---- gt  01

User · Answer

I know that is late to respond  but there are a basic way to do it  with no libraries  If your number is less than 100  then   number 100  toFixed 2  toString   slice 2

User · Answer

You can use   String format   02d   myNumber    See also the javadocs

User · Answer

In android resources it s rather simple   lt string name  smth  gt  1 02d lt  string gt

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

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Examples related to number-formatting