SemanticSpace Java Interview Questions With Answers

Company Name :  SemanticSpace Technologies

Interview Questions:

  1. Tell me about your self? 
  2. What is the difference between an Interface and an Abstract class? 
  3. Can abstract class have constructors ? Read Answer
  4. How many ways we can call garbage collector ?
  5. What is use of load on startup tag ?
  6. What is the difference between notify() and notifyAll() methods ?
  7. Why the notify and notifyAll() methods included in Object class ?
  8. What is the difference between HashMap and TreeMap ?
  9. What is the use of hibernate ?
  10. What are the types of cache levels available in Hibernate ? How to configure ?
  11. What is the difference between Servlet and filters ? 
  12. What is SingleThreadModel interface ?
  13. What are the implicit objects available in JSP ?
  14. How does JSP handle run-time exceptions?  
  15. What is the difference between update and merge in hibernate ?
  16. Write a query to retrieve highest salary by dept id ?

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