Posted by evanx
on October 30, 2006 at 1:04 PM PST
Frank Somerville posted his favourite questions to ask interviewees. Here are some answers to avoid ;)
Frank Somerville posted "My Favorite Java Developer interview questions" which i enjoyed reading a minute ago. Here are some answers to avoid ;)
Q. When does the JVM do Garbage Collection?
I got no idea. Who's JVM, is he the janitor here?
Q. What's the difference between an interface and an abstract class?
An abstract class is um, a class that is abstract. An interface is just an interface.
Q. Name the different types of JDBC drivers?
MySQL, PostgreSQL, SQLServer... You want all of them?!
Q. How do I find out how many rows there are in a ResultSet?
Easy. resultSet.length(). No hang on, actually it might be
Q. Does Java use pass-by-value or pass-by-reference semantics?
For what, an int or a String?
Q. What does "NULL" mean in SQL?
Ok, this must be a trick question. If it's not null, um... zero!?
Pick one and answer it, correctly or incorrectly :) Any other good questions?