Java - (Enumerable|Iterator) Data Type (Iterable interface)

About

The (Enumeration|Iterator) interface defines the methods by which you can:

• iterate
• enumerate
• obtain one at a time

the elements of a collection.

The Enumerator Interface:

• has been deprecated for the use of Iterator.
• is an external iterators

Articles Related

Enumerable data type

Enumerable types are class that implement the enum or iterable interface such as:

• all collection,
• and Java arrays

toStream

Stream

StreamSupport.stream(iterable.spliterator(), false/true)

Example:

• Does a string starts with a root directory ?

String s = "c:\";
Boolean isAbsolutePath = StreamSupport
      .stream(fileSystem.getRootDirectories().spliterator(), false)
      .anyMatch(p->s.startsWith(p.toString()));