You have read about the new features that have arrived in Java world but didn't have the opportunity to learn them yet? I have a challenge for you.

What's new in Java world

I won't describe what's new in Java world because this article is hard to surpass:

20 Reasons to Move On from Java 8

Andrew (he/him)

Andrew (he/him)

Andrew (he/him)

Follow

Nov 23 '19

20 Reasons to Move On from Java 8

#news #java

249 reactions

21 comments

31 min read

How to practice it?

But reading about what's new is not enough.

Alas, your project at work may be stuck with Java 11 or even Java 8.

In a previous article, I shared the tip that if you want to learn more about a programming language - or here its evolution - you should write unit tests about them.

Unit test your learning 💡

Jean-Michel 🕵🏻‍♂️ Fayard

Jean-Michel 🕵🏻‍♂️ Fayard

Jean-Michel 🕵🏻‍♂️ Fayard

Follow

May 28 '21

Unit test your learning 💡

#javascript #beginners #career #programming

57 reactions

2 comments

5 min read

This is exactly what I've started to do here:

If you look in the src/main/test folder, you will find snippets like this one:

public class RecordJava14 {
    record Employee (String name, int age, String department) {
    }

    @Test
    void createRecord() {
        var patrik = new Employee("Patrick", 36, "Marketing");
        assertThat(patrik.toString()).isEqualTo("Employee[name=Patrick, age=36, department=Marketing]");
        assertThat(patrik.name()).isEqualTo("Patrick");

        var clone = new Employee("Patrick", 36, "Marketing");
        assertThat(clone).isEqualTo(patrik);
    }
}

This gives you a view of the features of modern Java that are already covered:

Your challenge

If you want to learn more about modern Java, I challenge you to pick one of the remaining issues and implement it.

​ https://github.com/jmfayard/java16-playground/issues

(of course, you can also create a new issue)