Java Developer Learning Path Start here with your taste

Benefits of Java

Write once, run everywhere
Java is Simple.
Java is light & fast and serve a variety of purposes.
Java is an Object-Oriented Programming language.
Java is a secure language.
Java is cheap and economical to maintain.
Java is platform-independent.
Java supports portability feature.
Java provides Automatic Garbage Collection.
Java supports Multithreading.
Demand for Java Developers remains strong, even with competition from new languages.

What is Java Technology?

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

Java is free to download for personal use. Java is also free for development:

Java Runtime Environment

Java Runtime Environment (JRE) version 8 is what you get when you download Java software from java.com. The JRE is the runtime portion of Java software, which is all you need to run.

Java Virtual Machine and JVM.

The Java Virtual Machine is only one part of Java software that is involved in running an application. The Java Virtual Machine is built right into your Java software download, part of the JRE and helps run Java applications.

The JRE consists of the Java Virtual Machine (JVM), Java platform core classes, and supporting Java platform libraries.

Java Developer Learning Path Start here with your taste.

A Java developer is a specialized programmer or you can say coder who teams up with software engineers to combine Java into business software, applications, and websites. A Java developer is responsible for

Design, Implement and Maintain Java Application
Involved in software analysis, testing, coding, and debugging
Transform requirements into stipulations
Recommending modifications to advance established Java application
Develop technical designs for app development, etc.

1) Core Java

‘Core Java’ defines the basic Java that covers the basic concept of Java programming language.

The first thing you need to learn is Core Java. So in the core java, you need to learn the following major topics:

Java Fundamentals
OOPs Concepts
Overloading & Overriding
Inheritance with Interface and Abstract Class
Exception Handling
Packages
Collections
Multithreading
Swings
Applets
JDBC (Basic Database Connections)
Data Types and Variables
Features and Architecture
Operator and Expressions
String Class
Conditional Statements and Loops
OOPs Concept in Depth
Multithreading
JAVA IO Streams
Collection Framework
Java 8

2) Advanced Java

After learning Core Java you need to learn the Advanced Java concepts. In this particular Advanced Java, you need to learn the following topics

Design Pattern
JVM
Threads
Servlet and JSP’s
Concurrent Programming
Garbage Collection
Best Practice and Code Structure

Advanced Java, you don’t need to learn everything in detail but you just be aware of all the above things and how those are working. And whenever you are working on these particular things you can read about them and you can implement them in your project.

3) IDE’s

Once you are well versed with the core and advanced java you should be able to code java applications. So for that, you should know any of the following IDE’s

IntelliJ IDEA
Eclipse
Spring Tool Suite
VS Code

You must be aware of the different shortcuts for your IDE whichever you are preferring so that it will optimize your workflow and increase your productivity for developing applications.

4) Build Tools

Now all your java code should be built. So for building your Java project you must be aware of the different build tools. Some of the amazing tools that you can use for building your Java project are:

Maven
Gradle
Ant

5) Servers

Once you have created your web application it’s time to deploy it. So you will be deploying your web application on the server so you must be aware of at least one server that you can work with. Tomcat is the most widely used server. Apart from that JBOSS is also used in many places.

Tomcat
Weblogic
JBOSS
WebSphere
Jetty

6) Database

Database plays an integral role in creating a Java application as storing data is a crucial aspect. So if you work in any organization you have to work with databases. You have to write the queries to execute different operations on a database. So some of the topics that you need to learn are:

SQL
ACID
Joins
Indexes
Constraints
Advanced SQL
Procedures
Packages
Functions
DBA
NoSQL
MongoDB
ORM (Object-relational mapping)Framework
JPA (Java Persistence API)
Hibernate
iBatis
Spring Data JPA

7) Testing

Testing is a very important phase during your development journey. So you must be aware of how to test your Java application to minimize error and maximize efficiency.

Unit Testing
Integration Testing
Debugging Code (Must know)
Junit
Mockito

8) Logging

There are different logging libraries are available in Java. So whenever you create the Java application you should log your errors or files to get information about what’s happening in the system. You must be aware of any of the following Logging libraries

Log4j
Log4j2
Logback

9) Frameworks

There are a lot of different frameworks are available in Java. These frameworks foster easy debugging, extensive code reusability, improved code efficiency, and reduce the overall development time. So mentioned below are some of the Java Frameworks that you can learn:

Spring
Spring Boot
Hibernate
JSF
GWT
Micronaut

10) Keep Practicing

“Practice makes a man perfect”. So keep learning, practicing, and stay updated.

Java Editions

The Java Programming Language has the following defined editions that it supports: Thus, it is clear that Core Java is the part of Java SE and Java SE is the foundation for all other Java editions.

Java SE (Java Standard Edition)

The Java SE is a computing-based platform and used for developing desktop or Window based applications. Thus, core Java is the part of Java SE where the developers develop desktop-based applications by using the basic concepts of Java where JDK (Java Development Kit) is a quite familiar Java SE implementation.

Java EE (Java Enterprise Edition)

Also known as Java 2 Platform or J2EE. It is the enterprise platform where a developer develops applications on the servers, i.e., the enterprise development. This edition is used for web development.

Java ME (Java Micro Edition)

It is the micro edition that is used for the development of mobile phone applications. Thus, for the development of mobile applications, one needs to use Java ME.

Start with basic understanding & practice regular.

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Java Developer Learning Path Start here with your taste

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