### Relevant articles

- [Array Processing with Apache Commons Lang 3](http://www.baeldung.com/array-processing-commons-lang)
- [String Processing with Apache Commons Lang 3](http://www.baeldung.com/string-processing-commons-lang)
- [Introduction to Apache Commons Math](http://www.baeldung.com/apache-commons-math)
- [Apache Commons Collections SetUtils](http://www.baeldung.com/apache-commons-setutils)
- [Apache Commons Collections OrderedMap](http://www.baeldung.com/apache-commons-ordered-map)
- [Introduction to Apache Commons Text](http://www.baeldung.com/java-apache-commons-text)
- [A Guide to Apache Commons DbUtils](http://www.baeldung.com/apache-commons-dbutils)
- [Guide to Apache Commons CircularFifoQueue](http://www.baeldung.com/commons-circular-fifo-queue)
- [Apache Commons Chain](http://www.baeldung.com/apache-commons-chain)
- [Introduction to Apache Commons CSV](http://www.baeldung.com/apache-commons-csv)
- [Apache Commons IO](http://www.baeldung.com/apache-commons-io)
- [Apache Commons Collections Bag](http://www.baeldung.com/apache-commons-bag)
- [A Guide to Apache Commons Collections CollectionUtils](http://www.baeldung.com/apache-commons-collection-utils)
- [Apache Commons BeanUtils](http://www.baeldung.com/apache-commons-beanutils)
- [Apache Commons Collections BidiMap](http://www.baeldung.com/commons-collections-bidi-map)
- [Apache Commons Collections MapUtils](http://www.baeldung.com/apache-commons-map-utils)
- [Histograms with Apache Commons Frequency](http://www.baeldung.com/apache-commons-frequency)
- [An Introduction to Apache Commons Lang 3](https://www.baeldung.com/java-commons-lang-3)
- [Implementing a FTP-Client in Java](http://www.baeldung.com/java-ftp-client)