Java collection framework provides you with the complete architecture of objects. Java frameworks group of objects includes – classes, interfaces, and algorithm.

Collections 101 The Java collections framework is a set of classes and interfaces that implement commonly reusable data collection structures.

In Java 1.0 and 1.1, the two primary collection classes were Vector and Hashtable, and the Iterator design pattern was implemented in a class called Enumeration.

In Java, nested classes are categorized as either static member classes or inner classes. Inner classes are non-static member classes, local classes, or anonymous classes.

Choose the wrong Java collection class, and application performance will suffer. Choose the correct collection classes, and your high Java CPU usage problems will disappear. Recalculation of already ...

Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.