Apache Commons Lang
Core classes manipulation methods are not provided by the Standard Java libraries. Extra methods provided by Apache Commons Lang are:
For Java, these utilities are provided by the Apache Commons Lang. Lang APINumerical methodsString manipulation methodsObject reflectionCreation and serializationConcurrencySystem propertiesUtilities for hashCodeUtilities for equalsBasic enhancements to java.util.DateUtilities for toString
Apache commons basic focus is at the Java components which are reusable. It is basically an apache project which consists of three parts. The Commons Proper:
Reusable Java component repository. The Commons Sandbox :
Workspace for developing java components. The Commons Dormant :
Sandbox component repository, which is not active currently.
Major Principals of the Apache Commons Proper: To create or