Top 10 tips to become a better java developer

Top 10 tips to become a better Java developer.

1. Learn java 8
2. Learn springboot.
3. Learn any one orm Hibernate or JPA
4. Learn JVM internals
5. Learn Microservices
6. Learn unit testing
7. Learn cloud tools like GCP,AWS or azure
8. Learn Docker and Kubernetes
9. Learn git
10. Learn IDE better

1. Learn java 8

Java 8 is the most important thing for Java developers. The latest version of java is java 15 which is released on September 15, 2020. But most of the companies are adapted to the Java 8 version. So it is important for java developers to learn and practice the features of java 8. There are some cool features in java 8.

Almost all development jobs now require java 8 skills and most of the java frameworks are built on top of Java 8 only like springboot

Java 7 code to sort a list in descending order

List<Transaction> groceryTransactions = new Arraylist<>();
for(Transaction t: transactions){
  if(t.getType() == Transaction.GROCERY){
    groceryTransactions.add(t);
  }
}
Collections.sort(groceryTransactions, new Comparator(){
  public int compare(Transaction t1, Transaction t2){
    return t2.getValue().compareTo(t1.getValue());
  }
});
List<Integer> transactionIds = new ArrayList<>();
for(Transaction t: groceryTransactions){
  transactionsIds.add(t.getId());
}

Java 8 code to sort a list in descending order

List transactionsIds = 
    transactions.stream()
                .filter(t -> t.getType() == Transaction.GROCERY)
                .sorted(comparing(Transaction::getValue).reversed())
                .map(Transaction::getId)
                .collect(toList());

2.springboot

It’s almost important nowadays for a Java developer to learn about Spring, as most of the companies prefer to do development by using Spring frameworks like Spring MVC, Spring Boot, and Spring Cloud for developing REST APIs, web applications and microservices.

It also has auto dependency management and some cool features like dependency injection and embedded server and predefined API endpoints for building web applications at a rapid rate.

If you are working as a Java developer then I will suggest you start with the Java 8 and Spring tutorial to learn the basics of this awesome framework and if you have good knowledge in Spring then you can explore Spring Boot and Spring Cloud for developing next-generation Java applications.

3. learn hibernate

Hibernate is another Java Object-relational Mapping tool to interact with databases through the java application.it is an open source ORM tool. most of the java development projects are using hibernate and most of the development projects are using hibernate and most of the companies are expecting good knowledge in hibernate.

4. Learn JVM internals

Are you serious to become a rock star java developer then you need to focus and learn the internals of the JVM like different parts of JVM how they implemented and how it works and how garbage collections and collectors etc.,

If you know JVM well you can write robust and high-performance Java applications. This is what a Rockstar Java developer does.

As part of this, you can also learn how to design your java application, how to find performance issues like which objects are taking high memory and killing the CPU performance.

5. Learn Microservices

Microservices are the high demand skill in the current job market and it is an architecture style of design for the application.it is a service oriented architecture. In microservices, we build small applications instead of whole applications.

In microservices architecture maintenance of applications is easy and convenient. Build and uptime is less as compared to the monolith architecture so most of the companies are adopting this technology.

We can create microservices by using the spring boot.

6. Learn unit testing

There is a difference between a java developer and a rock star developer. A common java developer won’t write the unit test for his code but a rock star developer can write a unit test case for his code.

Testing is a long way. There are several tools for unit testing, automation testing, and integration testing available to Java developers.

Learn JUnit 5 and some other mocking frameworks like mockito, power mock, cucumber will take your testing skills to the next level.

7. Learn cloud services.

Cloud services are software applications, infrastructure, or platforms hosted and made accessible to users via the internet by third-party providers. These services are maintained and managed by third-party providers only.

Cloud services allow the flow of user data from front-end clients (e.g. users’ servers, desktops, tablets, laptops—anything from the users’ ends), using the internet, to the provider’s systems, and back. Users can access cloud services with nothing more than an operating system, computer and internet connectivity or virtual private network (VPN).

Cloud services types:-

1. IAAS (Infrastructure-as-a-Service) This service provides users with networking, compute, and storage resources.
2. PAAS (Platforms-as-a-Service):- This service provides users with a platform on which we can run applications, along with this all the IT infrastructure required for it to run.
3. SAAS (Software-as-a-Service):- This service provides users with essentially a cloud application, the platform on which it runs, and the platform’s underlying infrastructure.
4. FAAS Function-as-a-Service:- This service provides an event-driven execution model, developers can build, run, and manage app packages as functions without changing the infrastructure.

Recommended Cloud services:-

1. Amazon Web Services(AWS)
2. Microsoft Azure
3. Salesforce

8. Learn Docker and Kubernetes

You’ve probably heard the word around Docker and Kubernetes and the importance of it on DevOps teams. You may think that another new technology came into the market but I will say that Docker is not another technology but it is truly a game-changer in the IT industry.

Along with Docker, Kubernetes is also one of the most important tools that you can learn and will be helpful in your entire career.

9. Git

From app developers to web developers, Git is useful to anyone who writes code or tracks changes to files. So what is it all about and why should we start using it? What is Git?

Git is the top most commonly used version control system. Git gives a very convenient way to track the changes you make to files, so you can check and view what has been done, and you can revert or get back up easily to specific versions whenever you need to. Git also makes collaboration easier, faster and allowing changes by multiple people to all be merged into one source.

Git is useful for version management of the applications and collaboration with the team easily.

10. Learn IDE Better

If you want to become a good and productive developer you need to learn all about your IDE and shortcuts. A better Java developer needs to be good at their tools and it is important to use the tools very efficiently.

Since IDEs like Eclipse, IntelliJ IDEA and NetBeans are the most important tools for a Java programmer, it would be very useful to spend some time to learn more about them.

You can learn some plugins that will make your tasks easier or some keyboard shortcuts, which help you to perform better.

Conclusion

We have researched and collected from the working professionals in its industry to provide genuine content. The above skills are useful to the developers who are working as a java developer in 2021 you can also read about zybooks.