BANGALORE, INDIA: Commons Lang is a component of Apache Commons, a macro project whose many subprojects relate to various aspects of software development in the Java language. Commons Lang extends the standard java.lang API with string-manipulation methods, basic numerical methods, object reflection, creation and serialization, and System properties.

It also contains an inheritable enum type, support for multiple types of nested Exceptions, enhancements to java.util.Date, and utilities that help with building methods such as hashCode, toString, and equals. I've found Commons Lang to be helpful across a wide variety of application verticals. By using Commons Lang, you'll end up writing less code, which lets you deliver production-ready software faster and with fewer defects.

This tutorial guides you step-by-step through the fundamental concepts of using a few different Commons Lang classes and leveraging their code so that you don't have to write so much of it yourself.

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