Removing all digits, non-digits, whitespaces (from Strings) and other usages of replaceAll

Some tasks will require you to replace all occurrences of certain Strings from other Strings with something else, based on a pattern. Or remove all those occurrences. For example, maybe you want to only keep the numeric characters of a String. Or remove all numeric characters. Or maybe remove all white spaces. For this, the… Read More

Extracting substrings with StringUtils from the Apache library

Following on from some of my earlier posts, where I described some of the useful utils from the apache.commons.lang3 library (like that very nice RandomStringUtils class), this time I will focus a bit on the StringUtils class.  As the name suggests, it provides developers and testers an easy way to deal with certain String related… Read More