The org.apache.commons.lang StringUtils substringAfterLast method is used to extract the substring after the last occurrence of a specified character or string in a larger string. This method is useful for extracting the file extension from a file name or for parsing a URL.
Here are some examples of how to use the StringUtils substringAfterLast method:
Example 1: Extracting the file extension from a file name
This method is part of the Apache Commons Lang library, which provides a variety of utility functions for working with strings, arrays, and other common programming constructs. To use this library in your Java project, you need to add the commons-lang dependency to your project's build file. For example, if you're using Maven, you can add the following dependency to your pom.xml file:
commons-lang commons-lang 2.6
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