java - Print only the first occurrence in a matcher -

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i use following code extract age of user in 1 document, age appears several times:

pattern r = pattern.compile("(\\d{2})(?=-year-old)"); matcher matcher = r.matcher("he 55-year-old doctor. xxxxx. 55-year-old man xxxx. when 55-year-old , xxxx"); if(matcher.find()) {                     system.out.println(matcher.group(0));                 }

finally result:

55 55 55

how can print 55 once?

thanks in advance.

you can make non-greedy adding ?

pattern r = pattern.compile("(\\d{2})(?=-year-old)?");

should work, click detail


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