Java Programming - MCQ Practice Questions
Java interviews and campus tests lean heavily on object oriented behaviour rather than API recall. This set covers inheritance and polymorphism, interfaces and abstract classes, the collections framework, exception handling, multithreading, string handling, and JVM basics such as garbage collection. Output based questions are included because they expose the gaps that theory questions hide.
951 questions | 100% Free
A developer wants to retrieve data from a stored procedure that returns multiple result sets and output parameters. Which approach is correct?
A query execution takes 5 seconds consistently. Which JDBC optimization technique should NOT be used for this scenario?
In a JDBC application using batch updates, what happens if one statement in the batch fails?
A Java application requires connection pooling to handle 1000+ concurrent database requests efficiently. Which JDBC component should be implemented?
In JDBC metadata operations, which method is used to retrieve information about table structure, column names, and their data types?