Utility class for always having a string with fixed length?

Question

Probably there is already some kind of apache or guava utility class for my requirement:

I want to always create strings of the same length. The missing characters should be filled either left or right with a fixed character. Something like:

Utils.filledString(teststring, " ", 5); //would ensure the teststring is always 5 chars long, and if not append whitespace to the right
Utils.filledString(teststring, "x", -5); //same as above, but fill the 5 chars left with an x

You get the idea, and probably it's already there, but I'm missing the right keyword to find it.

Review the documentation of [StringUtils](http://commons.apache.org/proper/commons-lang/apidocs/org/apache/commons/lang3/StringUtils.html) — Marko Topolnik, Dec 10 '14 at 08:45
possibile duplicate here: http://stackoverflow.com/questions/388461/how-can-i-pad-a-string-in-java — Maxx, Dec 10 '14 at 08:46

Flown · Answer 1 · 2016-07-06T11:44:25.977

5

There is already a solution in guava project. Google Guava String. It is called padEnd/padStart

edited Jul 06 '16 at 11:44

answered Dec 10 '14 at 08:46

Flown

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flavio.donze · Accepted Answer · 2014-12-10T08:55:29.500

2

Have a look at apache commons lang StringUtils:

StringUtils.rightPad(String str, int size, String padStr)
StringUtils.leftPad(String str, int size, String padStr

StringUtils.rightPad("bat", 5, "")    = "bat  "
StringUtils.leftPad("bat", 5, "x")    = "xxbat"

edited Dec 10 '14 at 08:55

answered Dec 10 '14 at 08:48

flavio.donze

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That was what I was looking for! – membersound Dec 10 '14 at 08:56

Utility class for always having a string with fixed length?

2 Answers2