android split string doesn't work correctly

Question

in my android app, i would like to split an array value into another array.

i have an Array with the name ArrayA. log of ArrayA[0]:

Peter|Mustermann

now i would like to split Peter and Mustermann, i try this:

String [] ArrayB = ArrayA[0].split("|");

But the Log of ArrayB[0] and ArrayB[1] will not be:

Peter

And

Mustermann

it will be:

P

And

nothing

Any ideas ? :(

Check out this: http://stackoverflow.com/questions/6965642/android-split-not-working-correctly?rq=1 — LordRaydenMK, Jan 07 '16 at 14:27

erg · Answer 1 · 2016-01-07T15:03:39.013

5

The public String[] split(String regex) works with a regular expression.

In a regular expression | is a reserved character, so try to escape it using

String [] ArrayB = ArrayA[0].split("\\|");

See here for more information about other reserved characters: http://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html#sum

And see here for a compilable sample: http://ideone.com/fjXNoJ

edited Jan 07 '16 at 15:03

answered Jan 07 '16 at 14:27

erg

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than i get the error: illegal escape character – SpecialFighter Jan 07 '16 at 14:29
thanks Marvin. Updated – erg Jan 07 '16 at 14:47

score 1 · Answer 2 · answered Jan 07 '16 at 14:51

You'll have use it as follows:

String [] ArrayB  = Array[0].trim().split("\\|");

As '\' is a special character also (along with |), two backslashes in a string literal will mean one backslash in the actual String, which in turn will represent a regular expression that matches a single backslash character.

score 0 · Accepted Answer · answered Jan 07 '16 at 14:31

0

Just use a single quote

String [] ArrayB = ArrayA[0].split('|');

answered Jan 07 '16 at 14:31

Viral Patel

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It does not work for me. It splits ArrayA[0] char by char. It does not take '|' as separator. – deinier Jan 07 '16 at 14:50

android split string doesn't work correctly

3 Answers3