Joseph  Murray

Joseph Murray

1622035740

Pure Bliss With Pure Functions in Java

This deep dive into pure functions and collaborative development will help you see how object-oriented and functional programming can work together in Java.

Writing software is hard.

Writing good software is harder.

Writing good, simple software is the hardest.

Writing good, simple software as a team is the hardest… est.

You shouldn’t need several hours to understand what a method, class, or package does. If you need a lot of mental effort to even start programming, you will run out of energy before you can produce quality. Reduce the cognitive load of your code and you will reduce its amount of bugs.

“This is puristic nonsense!” you say. “Intellectual masturbation! Software should be modeled after real-world, mutable objects!”

I’m not saying you should go on a vision quest and return as a hardcore functional programmer. That wouldn’t be very productive. Functional and object-oriented programming can complement each other greatly.

I will show you how.

But first, let’s get to the what and why of it.

#java #tutorial #java 8 #functional programming #refactoring #clean code #team collaboration #pure functions

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Buddha Community

Pure Bliss With Pure Functions in Java
Tyrique  Littel

Tyrique Littel

1600135200

How to Install OpenJDK 11 on CentOS 8

What is OpenJDK?

OpenJDk or Open Java Development Kit is a free, open-source framework of the Java Platform, Standard Edition (or Java SE). It contains the virtual machine, the Java Class Library, and the Java compiler. The difference between the Oracle OpenJDK and Oracle JDK is that OpenJDK is a source code reference point for the open-source model. Simultaneously, the Oracle JDK is a continuation or advanced model of the OpenJDK, which is not open source and requires a license to use.

In this article, we will be installing OpenJDK on Centos 8.

#tutorials #alternatives #centos #centos 8 #configuration #dnf #frameworks #java #java development kit #java ee #java environment variables #java framework #java jdk #java jre #java platform #java sdk #java se #jdk #jre #open java development kit #open source #openjdk #openjdk 11 #openjdk 8 #openjdk runtime environment

Joseph  Murray

Joseph Murray

1622035740

Pure Bliss With Pure Functions in Java

This deep dive into pure functions and collaborative development will help you see how object-oriented and functional programming can work together in Java.

Writing software is hard.

Writing good software is harder.

Writing good, simple software is the hardest.

Writing good, simple software as a team is the hardest… est.

You shouldn’t need several hours to understand what a method, class, or package does. If you need a lot of mental effort to even start programming, you will run out of energy before you can produce quality. Reduce the cognitive load of your code and you will reduce its amount of bugs.

“This is puristic nonsense!” you say. “Intellectual masturbation! Software should be modeled after real-world, mutable objects!”

I’m not saying you should go on a vision quest and return as a hardcore functional programmer. That wouldn’t be very productive. Functional and object-oriented programming can complement each other greatly.

I will show you how.

But first, let’s get to the what and why of it.

#java #tutorial #java 8 #functional programming #refactoring #clean code #team collaboration #pure functions

Samanta  Moore

Samanta Moore

1624974840

Functional Interfaces in Java 8

Introduction

Functional interface is an interface that consists of one abstract method. These interface can show only one functionality. Beyond Java 8, _lambda expressions _can be used to represent the instance of a functional interface. Functional Interfaces can contain any number of default methods. ConsumerPredicate, Function, Unary Operator, Binary Operator are some of the examples of predefined functional interfaces.

Points to remember which are allowed and which are not allowed in a functional interface:

  • In any functional interface, single abstract method is allowed.
  • In a functional interface, more than one abstract method cannot exist.
  • We can have more than one abstract method if we remove @FunctionalInterface  annotation, but that interface cannot be functional interface.

From functional interface if we remove @FunctionalInterface annotation, it must be valid. We use an annotation so that only single abstract method can be present. In functional interface we can provide implementations as the default methods inside interface.

#functional programming #java #java #java 8 #functional interfaces #functional interfaces in java 8

Samanta  Moore

Samanta Moore

1624948542

Lambda Expression in Java 8

In this blog we will understand what is the lambda expression and why we need lambda expression and how we use lambda and about the functional interface.

What is Lambda Expression :
  • It is an anonymous function.
  • Not having name
  • No return type and no modifiers.

#functional programming #java #functional java #java #java 8 #java8 #lambda expressions in java

Samanta  Moore

Samanta Moore

1620458875

Going Beyond Java 8: Local Variable Type Inference (var) - DZone Java

According to some surveys, such as JetBrains’s great survey, Java 8 is currently the most used version of Java, despite being a 2014 release.

What you are reading is one in a series of articles titled ‘Going beyond Java 8,’ inspired by the contents of my book, Java for Aliens. These articles will guide you step-by-step through the most important features introduced to the language, starting from version 9. The aim is to make you aware of how important it is to move forward from Java 8, explaining the enormous advantages that the latest versions of the language offer.

In this article, we will talk about the most important new feature introduced with Java 10. Officially called local variable type inference, this feature is better known as the **introduction of the word **var. Despite the complicated name, it is actually quite a simple feature to use. However, some observations need to be made before we can see the impact that the introduction of the word var has on other pre-existing characteristics.

#java #java 11 #java 10 #java 12 #var #java 14 #java 13 #java 15 #verbosity