List is a Java interface that describes a sequential collection of objects. ArrayList is a class that describes an array-based implementation of the List Java interface.

java collections A Collection in simple terms means when a group of similar things, ... Collection Interface defines the most common methods that are applicable to any collection of the object.

The functional Predicate interface gets used extensively by the Java 8 Streams API. Any developer who wants to master functional programming in Java will need to be comfortable with the Predicate ...

The Enumeration was originally part of the JDK 1.0 release and was designed to aid developers who needed to loop through Vectors, process HashTable keys or pass data to a SequenceInputStream.While an ...

The Java Collections Framework provides insight into the usefulness of nesting one interface in another. Consider the java.util.Map interface, which describes a map (a collection of key-value pairs).