Interface – Interface is the blueprint of class, specifying what a class should do. The interface in Java refers to an abstract “class” that is used to group related methods with “empty ...

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

The Java 2 SDK organizes its vast collection of classes and interfaces into a tree-like hierarchy of packages within packages, which is equivalent to directories within directories.

Introduction: This lecture begins a series of lectures that together act as a capstone for the first half of the semester. These lectures explore collection classes, which are a sophisticated and ...

This class is a member of the Java Collections Framework. The class implements the Map interfaces including NavigableMap , SortedMap and extends the AbstractMap class. TreeMap in Java does not allow ...

This interface extends the iterable interface and is implemented by all the classes in the collection framework. This interface contains all the basic methods which every collection has like adding ...

Introduction: This lecture will cover a few remaining topics that are useful to know when dealing with collection classes in Java. First, we will examine the class named Collections(plural, not the ...

Java Supplier interface tutorial. As you can see, the code for the class that implements Java’s Supplier interface is fairly simple. The only requirements are the class declaration and the ...