Inner classes, which became available with Java 1.1, come in four flavors: Static member classes Member classes Local classes Anonymous classes Let’s take a quick look at each in turn.

Starting with JDK 1.1, Java provided the ability to create nested classes. A nested class is defined inside another class. There are two types of nested classes: static nested classes and inner ...

As such, you can incorporate the functional Consumer interface into your code simply by creating a class that implements java.util.function.Consumer, or by coding an inner class. Here is the Java code ...