Interview questions

Java Developer interview questions

41 questions. Tap “Show answer” to check yourself.

  1. What is jquery

  2. What is the full form of jstl?

  3. In spring MVC, the annotation is not mentioned at DAO class then which exception is occurred?

  4. Can you write any program

  5. What is abstraction?

  6. Tell me about Abstraction?

  7. What is Runtime Exceptions?

  8. Tell me the things should be kept in mind while creating your own exceptions in Java?

  9. When do you think Abstract methods are used?

  10. Define Polymorphism?

  11. Tell the two subclasses under Exception class?

  12. When do you think super keyword is used?

  14. When do you think throws keyword is used?

  15. Define Abstract class?

  16. Can constructor be inherited?

  17. What do you mean by the immediate superclass of Menu?

  18. Does Java allow Default Arguments?

  19. What do you mean by a Values Collection View ?

  20. Describe type casting?

  21. Define Dynamic Binding(late binding)?

  22. Tell the advantages of ArrayList over arrays?

  23. What do you mean by a Socket?

  24. Tell the advantages of Java Sockets?

  25. Where is the import statement used in a Java program?

  27. What does the JDBC DatabaseMetaData interface?

  28. What is batch processing and how to perform batch processing in JDBC?

  29. How can we store and retrieve images from the database?

  30. Which interface is responsible for transaction management in JDBC?

  31. What does the JDBC ResultSetMetaData interface?

  32. What does the JDBC ResultSet interface?

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