i finally got a computer again after many years. i ran a program i wrote in 2004 and noticed a logic error
i tried a fix and compiled from the command line. the compiler compiled it but gave me a warning and said to recompile with -Xlint for details.
it turned out the warnings were almost all about generics (which didn't exist in 2004). not saying type, and then later casting.
what a relief.
on the less meaningless side, one warning i don't quite understand.
warning: [serial] serializable class Maze has no definition of serialVersionUID
any idea what that means?