Bridgenext interview question

Technical Round 2 interview Questions. 1. OOP Concept. 2. Project And ur Role in project. 3. Array Vs ArrayList. 4. Linklist. 5. Primary Key Vs Unique key. 6. Store Procedure. 7. Exception. Technical round 3: Introduction yourself Strength Weakness OOPS in detail 1/2 hr on that Mysql in detail Exception handling 1 sql query 1 code prime no. Do u have any questions 3. Telephonic Hr round