match a word with out consecutive characters in it

Question

I am new to java regex. Can you please give a matching pattern for the following requirement. Example: "Apple" or "Google" should not be matched since there are consecutive characters in them. But, words like "Hard2Crack" or "Sometimes" should match.

Your help is appreciated.

At least try something to indicate some effort on your part – Ed Heal Sep 07 '14 at 14:00 — Ed Heal, Sep 07 '14 at 14:00

score 2 · Answer 1 · answered Sep 07 '14 at 14:00

2

You can use this regex:

^(?:(.)(?!\1))*$

Demo

answered Sep 07 '14 at 14:00

anubhava

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score 0 · Answer 2 · answered Sep 07 '14 at 14:12

0

(?!.*?([a-z])\1)^.*$

You can try this.uses a negative looakahead.

See demo.

http://regex101.com/r/oC3nN4/13

answered Sep 07 '14 at 14:12

vks

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match a word with out consecutive characters in it

2 Answers2