8 guidelines for writing reusable Java code. Define the rules for your code; ... Interface Segregation Principle (ISP): Clients should not be forced to depend on interfaces they do not use.

There are over 40 functional interfaces listed in the java.util.functions package, which can make the prospect of functional programming in Java a somewhat daunting task. However, ... Writing ...

How to use Java’s Function interface. For this Java Function interface example, we will provide a single method named “apply” that takes an Integer as an argument, squares it and returns the result as ...

This not only serves as an interface for your Java (or Kotlin) ... For the purposes of this Java tutorial, it may be easier to write your code directly into a Java compiler app.

JDK Enhancement Proposal (JEP) 191 defines the Java Foreign Function Interface (FFI), which are interfaces that can bind native functions to Java methods and can manage blocks of native memory.