Can have private methods with the implementation (introduced in Java 9). Can have any kind of methods. Let’s explore the main differences between interfaces and abstract classes with a Java code ...

In Java, nested classes are categorized ... The second example demonstrates an anonymous class implementing an interface. Expression new I() is followed by a pair of brace characters that signify ...

To address the shortcomings of this approach, Java 1.1 introduced the concept of anonymous inner classes. An anonymous inner class allows developers to define and implement a functional interface at ...

If you want to master functional programming, the best place to start is with the Java Function interface. This example will show you four different ways to implement this functional interface in your ...