Comparing Mather groups returns unexpected value

Question

The values of zerosMatcherNext.group(1) and zerosMatcher.group(1) are being evaluated as String with value 0 but the comparison zerosMatcherNext.group(1) == zerosMatcher.group(1) returns false. What is the explanation for such a strange behavior?

UPDATE:

but zerosMatcherNext.group(1).equals(zerosMatcher.group(1)) returns true

I blame it on the code you didn't post. – Aran-Fey Jan 13 '15 at 12:29 — Aran-Fey, Jan 13 '15 at 12:29

score 1 · Answer 1 · edited May 23 '17 at 12:05

1

String comparison should be made with equals

    new String("0") == new String("0"); // return false
    new String("0").equals(new String("0"); // returns true

Java comparison with == of two strings is false?

edited May 23 '17 at 12:05

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answered Jan 13 '15 at 12:29

Master Slave

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@RCola `===` does not exist in Java. – sp00m Jan 13 '15 at 12:33

Comparing Mather groups returns unexpected value

1 Answers1