Rollerball questions

• Is FileWriter buffered?
• Final passed as parameter [duplicate]
• BasicFileAttributes vs BasicFileAttributeView in Java
• Casting an int into a long
• Hibernate: MethodConstraintViolation is deprecated
• Java Transfer Object, what is it?
• ArrayDeque and LinkedBlockingDeque
• Java meaning of .java~
• About the HashMap, rehashing
• Optional method in Collection interface [duplicate]

Rollerball answers