Carrier Advice for a JAVA Developer How to Become a Java Programmer
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This document provides information on the career path for a Java developer. It discusses Java as a programming language, the responsibilities of Java developers including tasks like designing and building Java applications. It also describes the roles of senior and junior Java developers. The document emphasizes important Java concepts like OOP principles, frameworks like Spring, tools like JUnit, and skills like debugging. It explains why Java remains in high demand and skills a Java developer should focus on improving like APIs, design patterns, the JVM, and problem-solving.
Carrier Advice for a JAVA Developer How to Become a Java Programmer
- 1. Carrier Path For JAVA Developer
- 2. Java Programming Language Java is a programming language developers use for mobile, software, and web development. A small team called ‘The Green Team’ initially conceptualized Java in the early 1990s. That team included James Gosling, who later became known as the ‘Father of Java’ for his work. Gosling developed Java while working as an engineer at Sun Microsystems (a subsidiary of Oracle today). Java is an Object-Oriented Programming (OOP) language, meaning it organizes design around objects (as opposed to functions and logic)
- 3. Java developer task and responsibility Java developers specialize in designing, building, and managing Java-based applications and tools. Java development includes Data science, Data engineering, software tools, web applications, and scientific applications. We should also improve knowledge on software delivery and software deployment on production.
- 4. Java support OOPS principles, so we should master all OOPS concept There are four critical principles of Java OOP development. These include: •Encapsulation is a condition that’s achieved when an object’s state is private, enclosed in its class (a template with similar properties that developers use to create objects), and public functions can’t access it. •Abstraction occurs when objects only expose the key details you need to work with them (making your program easier to develop). •Inheritance occurs when objects are structured into parent and child structures, sharing common logic without needing to be the same. •Polymorphism is a way to use child classes like their parent class without altering the child class.
- 5. Senior Java Developers As a senior Java developer, you will have 5+ years of experience, a deep understanding of your business’s IT systems, and expertise on various projects. You will likely spend your work time: •Planning, consulting, and reviewing sophisticated Java projects •Overseeing work done by junior staff members •Working with vendors •Overseeing the financial side of development
- 6. Junior Java Developers Responsibility Junior Java developer, you will likely enter the profession with limited professional experience. Naturally, you will spend your time: •Developing your Java programming skills •Writing basic code •Fixing basic bugs
- 7. As a Java Developers you must know OOPS principles There are four critical principles of Java OOPs development. These include: •Encapsulation is a condition that’s achieved when an object’s state is private, enclosed in its class (a template with similar properties that developers use to create objects), and public functions can’t access it. •Abstraction occurs when objects only expose the key details you need to work with them (making your program easier to develop). •Inheritance occurs when objects are structured into parent and child structures, sharing common logic without needing to be the same. •Polymorphism is a way to use child classes like their parent class without altering the child class.
- 8. Java vs Javascript confusion As Java and JavaScript have similar names, many newer developers often confuse the two. However, they’re distinctly different languages. Java is a compiling language, meaning it’s translated into machine code by compilers. Alternatively, JavaScript is an interpreted scripting language, meaning it’s translated into machine code when it’s run. Java and JavaScript also have different uses. Developers primarily use Java for server-side development and JavaScript for web UI client work.
- 10. Why Java is in Demand for last 15-20 years Java is now run by Oracle, which is a running US multinational corporation. There is a great scope for the developers, especially as a platform and core APIs. The language is still high on the popularity scale and is ranked number 2 after C. The Android operating system of Google also uses Java APIs. Also, nearly 3 billion phones, blu- ray players, millions of TV sets all run on Java. Despite the growth of new programming languages many corporations still use Java as it can be used for both software and the development of the web.
- 11. You must have Good command on Java API and library Java is one of the most promising programming languages in the world. Also, it has the largest StackOverflow community which has a vital role in making a Java ecosystem. Having knowledge about vital APIs and Libraries which also includes Java Development Kit and other Third-party Libraries will form a prominent trait of an excellent Java developer in times to come.
- 12. You must have Good command on Spring Framework Spring framework is becoming highly popular with many Java Development Companies. The framework includes SpringBoot, Spring MVC and SpringCloud for development of web applications, REST APIs and even microservices. The framework also helps various developers to form applications from POJOs or Plain Old Java Objects.
- 13. You must have Good command on JUnit These will help you get an edge over other developers. Big corporations also prefer Java developers who are familiar with a whole range of unit testing skills, performance tests, integration tests etc. Even professional and experienced Java developers should improve their knowledge on various unit tests.
- 14. You must have Good knowledge on JVM Java Virtual Machine (JVM) is a vital part of the Java Runtime Environment (JRE). Knowledge of JVM is a clear indication of your depth of Java understanding as it is useful for solving complex issues while programming. Thus, knowing JVM system threads, understanding the link between Java bytecode and JVM, stack restrictions of Java etc. will be of great use as a Java developer.
- 15. Improve your knowledge of Design Pattern The importance of design patterns in software development is surely not hidden from you if you are an object-oriented software developer with some experience. Design pattern helps to depict the relations between the object and classes. If the naming of objects and classes gets done systematically, the recurring issue in these object- oriented systems gets addressed. Be it a regular employee or even a freelancer, a deep understanding of design patterns is always going to be a big plus.
- 16. Improve your Debugging skills Creating high-quality software code is only one part of a programmer’s job. Instead of spending hours blindly making changes, you need to learn the skills to carefully investigate code and research potential issues to find the solution that will produce the desired result. Improve your Problem-solving skills A good programmer thrives on finding ways to make things work, despite the odds.
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