1. all switch-case statements are the same, just invoked on different variables -> put the statement in a method and pass it the variable to query.   Moreover, the whole switch-case statement can be replaced by getting the index of the index of the x-LocationVInteger from the String "ABCDEFG":     
`locationStr = "ABCDEFG".substring(locationInt, locationInt+1);` and you can catch the `IndexOutOfBoundsException` to detect out of range int value

 1. you already use a collection to put locations. instead of keeping three separate set of variables for V/H and the rest-> use a colection for these as well.