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I am doing string manipulations and I need more advanced functions than the original ones provided in Java.
For example, I’d like to return a substring between the (n-1)th and nth occurrence of a character in a string.
My question is, are there classes already written by users which perform this function, and many others for string manipulations? Or should I dig on stackoverflow for each particular function I need?
Check out the Apache Commons class StringUtils, it has plenty of interesting ways to work with Strings.
http://commons.apache.org/lang/api-2.3/index.html?org/apache/commons/lang/StringUtils.html