Watir is one of the most popular Open source tool for Web Application automation, this course includes 

Watir WebDriver Basics to advance concepts and also covers  Ruby Concepts, Cucumber Framework, Automation Framework Design (Page Objects, Data Driven, Reading Excel Files)

Ruby Basics: Variables, If-Then-Else, For loop, While loop, Arrays, Classes, Inheritance, Objects, Constructors, Methods, Working with Excel file and database

WatirWebDriver Basics: Commonly used methods and locator types, Id, Name, Class Name, Link Text, Partial Link Text, Xpath, Css Selector

Ajax Handling,  Multi window handling, Actions class,  Implicit wait, Explicit wait. After completing the the course you will be able to write automated tests using selenium and java

This course will take you from basic to expert level step by step, we are covering all Ruby concepts which are required for selenium automation as well as you will be ready to face automation interviews