mafalda questions

• Base class does not define equals but sub-class needs to. How to implement?
• interpreting line in thread dump
• third-party Caching software- what do they provide?
• nested enum-why is it used?
• how to pass different enum types to a method?
• How to get string.format to complain at compile time
• client side pre-commit hooks in subversion
• How do I get a list of changed files in svn?

mafalda answers