RITE Technologies interview questions

Can you write the code required to load a JDBC driver? Explain how to establish a database connection using JDBC driver code. What are the exact steps and code to register a JDBC driver? How do you write the Java code to implement a JDBC driver? What are the main differences between an abstract class and an interface? Can you explain the four core concepts of Object-Oriented Programming? How do you handle and log exceptions effectively in Java? Write an SQL query to find the second highest salary in a table.