BNP Paribas interview question

1. Polymorphism 2.Overloading 3.Overriding 4.ArrayList Explain 5.String Reverse Programme 6.Hashmap Explain 7. Finding element from Data Table 8. Xpath & CSS - various ways to locate elements 9.POM 10 Framework Explanation. 11.Test NG basics 12. Parallel Testing In Selenium 13.Version of Java, Selenium