How to become a Java developer? Or maybe choose Python?

Hello, Habr!



I recently found a good article on how to become a Java developer, โ€œHow to Become A Successful Java Developer?โ€ By AakashSingh_17. And now I want to share the translation with you. However, I see how many young developers choose Python as their first language - due to objective advantages and myths associated with this language. Therefore, I added an analysis of this language so that beginners can compare and navigate - and what is better to choose in 2019 (in fact, as early as 2020).



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Or maybe Java?



Today, there are many programming languages โ€‹โ€‹that will shape our future. However, most people starting to learn programming start with C, and then move on to C ++ or one of many other programming languages. But today we will consider the most popular programming language - Java. The popularity of Java can be explained by its versatility, since it can be used to develop individual applications that are light and fast and serve various purposes.



Java developer



According to the TIOBE index (an index that measures the popularity of programming languages โ€‹โ€‹based on the calculation of search results containing the name of the language) in 2019, Java is the number one programming language. In fact, Java is used in almost every company, be it small companies or large technology giants such as Google, Amazon, etc. Thus, becoming a Java developer in the modern world, you can build your career very well! And that is why I am going to share my thoughts on how to become a successful Java developer:



1. Master the core Java SE



First, start with the Java kernel (Java SE) and master it as deep as possible. You need to know and understand basic concepts such as loops, arrays, operators, and more. In addition, Java SE has a number of general purpose APIs such as java.lang, java.io, java.math, etc. and you must have at least basic knowledge of them. You will also need to learn the concepts of OOP.



2. Continue to practice Java



Whatever you learn in Core Java, just keep practicing it to write without any major errors, such as syntax errors. It is usually easy to find a solution to the problem in theory, but in the practical implementation of the approach problems may arise, since language restrictions may arise. So continue to code and practice Java, and also try to make mini-projects on any topic of interest to you.



3. Learn Java EE



Start learning Java EE (Enterprise Edition), which is also known as Advanced Java. When you start learning Java EE, you can work on web development because Java EE has specifications for additional features such as distributed computing and web services. This includes technologies such as servlet, WebSocket, Java Server Faces, etc.



4. Create projects with servlets and JSP



All that you have learned in Java EE, simply combine with front-end technologies such as HTML, CSS, Javascript and try to make mini-projects on specific topics. In addition, it is important that you do at least two projects, one with a servlet and the other with JSP.



5. Explore the Hibernate and Spring Framework



When you finish exploring Java SE and Java EE, get to know the Java Framework, which includes the Hibernate Framework and Spring Framework. These are the most popular Java frameworks. In fact, most Java development companies use the Spring Framework, such as Spring Boot, Spring MVC, and Spring Cloud for developing web applications, etc. The Hibernate framework is also very popular for mapping an object-oriented domain model to a relational database. as well as the Hibernate query language. Thus, if you know these frameworks and can create projects on them, then you will have a great chance to be selected for the role of Java developer in any company.



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The Java programmer is one of the highly paid and sought-after professions in IT. High competition forces students to absorb more information and demonstrate professionalism from the first day of work. Today's 5 tips will help you get a little faster from a beginner to an interesting and well-paid job.



Maybe Python?



Python is a high-level general-purpose programming language focused on improving developer productivity and code readability. Python kernel syntax is minimal. At the same time, the standard library includes a large amount of useful functions.



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Python supports structural, object-oriented, functional, imperative, and aspect-oriented programming.



Python is easy to learn, read and use. And it is also one of the hottest technologies on the labor market. But this is just Python in a nutshell - there is much more. Read on to see our top reasons why Python is perfect for beginners.



Easy to learn, read and use.



Unlike C # and other languages, Python syntax is readable and concise. For a beginner, this will quickly pick up the basics, with less mental stress. By looking at the Python code, you can immediately understand what it does. While most programming languages โ€‹โ€‹require more syntax (written) code to perform similar tasks.



C #



public class Programm { public static void Main { Console. WriteLine("Hello World!"); } }
      
      





Python



 print("Hello World!")
      
      





You may notice that the amount of code we write is even for a simple application (7 lines in C # versus 1 line in Python). Even as we continue to scale, Python maintains the basic readability functionality and remains lightweight and convenient.



Less syntax memorization



Given the simplicity of Python syntax, you will not need to remember many sections of code. This will allow you to develop your true programming skills, not just your ability to remember syntax.



With less code to remember, the number of mistakes made by the developer is reduced. Over the years, Python has evolved, including new ideas that meet new requirements; however, the structure of the language has not changed at all. That is, the methods and functions are almost identical to those that were used 10 years ago. This allows you to read the code after a few years without adjustment.



Python is an Object Oriented Language



Every developer knows about object-oriented programming, and it is built into the Python language. It is the practice of creating objects and data to solve problems.



Using classes, understanding inheritance, and instantiating is the key to promoting yourself as a young developer. In addition to the object-oriented language that is already being created, Python comes with many libraries and modules that further expand its capabilities. These tools will allow you to speed up your development cycle, allowing you to create better projects faster than other languages.



Debugging



One of the most difficult skills for a beginner is debugging. It is here that you truly recognize the language and how it works from the inside. Sometimes you will have simple errors like syntax, in other cases they will appear in 1 out of 100 starts of your program. Here you will have to get to know your debugger and the main errors in the language. Fortunately, Python has a good error handling and reporting system, which many other languages โ€‹โ€‹donโ€™t have.







Brief conclusion



Python is an object oriented language; easy to learn, debug, read.

Python is widely used in web applications, game development, etc. Companies such as Google, Facebook, IBM, EA use Python. He can solve almost any problem.

Due to its simplicity and breadth of application, it is ideal for novice programmers.



Choose you. Choose carefully!



By the way, what would you choose or have you already chosen?



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