Extra's
Core Java
In the particular Java Developer roadmap, the first thing you need to learn is Core Java. So in the core java, you need to learn the following major topics:
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
Selenium
Selenium WebDriver Tutorial
Selenium Python Tutorial
TestNG with Selenium