Going Beyond Java 8: Pattern Matching for instanceof

A developer and Java expert gives an overview of the instanceof operator in the recent versions of Java and how it can be used to improve your code.

Introduction

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

This article is the first in a series of articles titled, “Going Beyond Java 8,” inspired by the contents of my book “Java for Aliens.” These articles will guide the reader step-by-step to explore the most important features introduced starting with Java 9. The aim is to make the reader 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 look at an interesting novelty introduced in Java 14 as a preview feature (see related article). This is the first part of a complex feature known as pattern matching. It will affect various programming constructs in the future, for now, though, pattern matching is only available for use with the instanceof operator as a feature preview. This will radically change the way we use this operator.

#java #pattern matching #java 14 #instanceof

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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.

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Going Beyond Java 8: Pattern Matching for instanceof

A developer and Java expert gives an overview of the instanceof operator in the recent versions of Java and how it can be used to improve your code.

Introduction

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

This article is the first in a series of articles titled, “Going Beyond Java 8,” inspired by the contents of my book “Java for Aliens.” These articles will guide the reader step-by-step to explore the most important features introduced starting with Java 9. The aim is to make the reader 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 look at an interesting novelty introduced in Java 14 as a preview feature (see related article). This is the first part of a complex feature known as pattern matching. It will affect various programming constructs in the future, for now, though, pattern matching is only available for use with the instanceof operator as a feature preview. This will radically change the way we use this operator.

#java #pattern matching #java 14 #instanceof

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

Learn Java 8 - Full Tutorial for Beginners. DO NOT MISS!!!

Learn Java 8 and object oriented programming with this complete Java course for beginners.
⭐️Contents ⭐️

⌨️ (0:00:00) 1 - Basic Java keywords explained
⌨️ (0:21:59) 2 - Basic Java keywords explained - Coding Session
⌨️ (0:35:45) 3 - Basic Java keywords explained - Debriefing
⌨️ (0:43:41) 4 - Packages, import statements, instance members, default constructor
⌨️ (0:59:01) 5 - Access and non-access modifiers
⌨️ (1:11:59) 6 - Tools: IntelliJ Idea, Junit, Maven
⌨️ (1:22:53) 7 - If/else statements and booleans
⌨️ (1:42:20) 8 - Loops: for, while and do while loop
⌨️ (1:56:57) 9 - For each loop and arrays
⌨️ (2:14:21) 10 - Arrays and enums
⌨️ (2:41:37) 11 - Enums and switch statement
⌨️ (3:07:21) 12 - Switch statement cont.
⌨️ (3:20:39) 13 - Logging using slf4j and logback
⌨️ (3:51:19) 14 - Public static void main
⌨️ (4:11:35) 15 - Checked and Unchecked Exceptions
⌨️ (5:05:36) 16 - Interfaces
⌨️ (5:46:54) 17 - Inheritance
⌨️ (6:20:20) 18 - Java Object finalize() method
⌨️ (6:36:57) 19 - Object clone method. [No lesson 20]
⌨️ (7:16:04) 21 - Number ranges, autoboxing, and more
⌨️ (7:53:00) 22 - HashCode and Equals
⌨️ (8:38:16) 23 - Java Collections
⌨️ (9:01:12) 24 - ArrayList
📺 The video in this post was made by freeCodeCamp.org
The origin of the article: https://www.youtube.com/watch?v=grEKMHGYyns&list=PLWKjhJtqVAblfum5WiQblKPwIbqYXkDoC&index=9
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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