How can I pad an integer with zeros on the left?

Question

How do you left pad an int with zeros when converting to a String in java?

I\'m basically looking to pad out integers up to 9999

Answer 1

You can use Google Guava:

Maven:

     guava
     com.google.guava
     14.0.1

Sample code:

String paddedString1 = Strings.padStart("7", 3, '0'); //"007"
String paddedString2 = Strings.padStart("2020", 3, '0'); //"2020"

Note:

Guava is very useful library, it also provides lots of features which related to Collections, Caches, Functional idioms, Concurrency, Strings, Primitives, Ranges, IO, Hashing, EventBus, etc

Ref: GuavaExplained