Java 8’s glories days are over and it is time to acknowledge its demise. Oh! I forgot, that was also the last time Arsenal won the league. I can vividly remember West life had taken the music industry by storm. My bad! JDK5 was special during that decade. They can beat Floyd Mayweather :) I didn’t mean to say that! I bite my tongue. But the EJBs are still heavy weights today compared to Spring as they need an application server. Yes, Spring which was originally interface21 was pivotal to the evolution of EJBs. Ronaldo and Messi should both be there to give the football industry some flavor. A ndroid and iOS should coexist together to enable innovation. Let me not even go there before I am called Spring Evangelist. You know that pride Spring developers have over Java EE developers. ![]() You felt like a god you felt so accomplished running your first “Hello World!”. In those days, it felt like running a spring boot app now. I remember when I first installed the JDK to my PC, it was a JDK4 or JDK5. I marvel at myself every time I run a project on Java 8, seeing that Oracle released Java 17! Forgive me Lord, I am a sinner. Remember electricity was discovered by chance, lightbulbs too, the mighty computer we have today was through trials and errors and it evolved to become what it is today. Yes, the Java we have today is really good, but it had humble beginnings too! The physics we have today, had humble beginnings to boot. And so, to come here and say it’s old is like laughing at those who drive “my father was rich” Mercedes car oblivious that it lead the brand to new improved models. It introduced essential features like the Streams API, Lambda Expressions, Functional interfaces, new date time API, default methods etc. ![]() Imagine! Nonetheless, this article does not aim to persecute Java 8 for being used mostly in many projects today in spite of its old age, because it’s introduction was a necessary foundation for Java going forward. This allows us to use var inside lambda expressions.To blaze a trail, Java 8 is really old! Released in 2014, almost 8yrs ago. Java 11 introduced an improvement to the previously mentioned local type inference. Java 11 Local Variable Type in Lambda Expressions ![]() It can be a standalone object or even a list with the diamond operator.įor more details about local type inference please visit the docs. First, we use them for defining local variables. We can see some of the most typical examples of using var type on local variables. Let us take a look at how we would implement a function for something like this in a naive way: ![]() To discard all the paperwork, we want to create a piece of software that finds all currently available cars that have run less than 50,000 km. In our examples, we will see how we use lambdas and streams in the different scenarios. The stream API and lambda expressions are the new features that move us closer to functional programming. With the release of Java 8, this statement became a little less valid. Java was always known for having a lot of boilerplate code. The main changes of the Java 8 release were these: This article is accompanied by a working code example on GitHub. The intention is to have a reference for all features between Java 8 and Java 17 inclusively. We will try to be as brief as possible on every feature. We will go through most of the changes in the Java language that happened from Java 8 in 2014 until today. Java 8 was a revolutionary release that put Java back on the pedestal of the best programming languages. A lot has changed in Java from its beginnings in 1995 until today.
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