Remove trailing zeros from string java [duplicate]

Question

Although I have seen a question similar to this one asked quite a few times, I actually mean remove all trailing zeroes.

I would like to convert something like

"1903895810000"

to

"190389581"

I am looking for a String.replace() solution

Doesn't seem to me like you're looking for anything because this question has already been asked 1000 times before — user1231232141214124
– user1231232141214124, Commented Jan 16, 2016 at 22:55

Dzmitry Paulenka · Accepted Answer · 2016-01-16 23:11:30Z

9

Simple regexp with replaceAll will do it.

String s = "1903895810000";
System.out.println(s.replaceAll("0+$", ""));

[EDIT]:

s.replace(0, "") will not work here, because it will remove all zeros from the string, so you can't use it. So, here I used replaceAll, that uses regular expressions to match replacement string. This simple regexp 0+$ matches any number of zeros 0+ followed by end-of-string $, so it would be "some zeroes at the end".

edited Jan 16, 2016 at 23:11

answered Jan 16, 2016 at 23:00

Dzmitry Paulenka

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3 Comments

user1231232141214124 Over a year ago

If you are going to answer such poor questions as this at least explain what your code is doing

Andreas Over a year ago

But how? If OP couldn't write that regex, then an explanation of the regex is appropriate, so OP (and other readers) can learn something. This answer doesn't help much.

Dzmitry Paulenka Over a year ago

Added an explanation.

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