Alpha Class contains basic information on JAVA language and common types of operations for everyday coding situations.
Selenium Class contains basic framework using Maven, JUnit and POM(Page Object Model).
Installing TestNG in Eclipse:
• Add Dependency from Maven (https://mvnrepository.com/artifact/org.testng/testng) to Pom.xml
• Add plugin in Eclipse from Help > Install New Software and choose version from TestNG site (https://testng.org/testng-eclipse-update-site/)
• Output is generated in {Project}\test-output