The Java stream toArray methods, which we learn in this post, allow us to collect/convert a stream into an array.

In this post, we will learn about the Google Guava Functions utility class which has static utility methods to work on Function instances.

In this post, we will learn about the useful static utility methods from the Google Guava Predicates class.

Apache Commons IO FileAlterationMonitor is a runnable to notify the registered observers at specified time interval with file system changes

In this post, we learn about the Apache Commons IO FileAlterationObserver - using which we can observe the state of files and directories.

In this post, we will learn about the PeekingIterator and AbstractIterator classes from Google Guava library.

The Suppliers class provides useful methods for working with a Supplier. In this post, we see the Suppliers utility class in Google Guava.

A PrimitiveIterator in Java is an interface for the primitive specializations of an Iterator. In this post, we will learn about the PrimitiveIterator, its subclasses and its uses.

Google Guava CharMatcher class is a Predicate for a character value. It also has basic text processing methods.

The Apache Commons Lang CharSet represents a set of characters. This post covers the Apache Commons Lang CharSet and CharSetUtils class.