java - IntelliJ importing class settings issue -


http://pastebin.com/nxpvmkrq

http://pastebin.com/pdamg5fr

http://pastebin.com/0ekb2fsp

the 3 links above of binary search tree assignment working on. 3 files in src folder in project. however, when try run problem2.java says:

"cannot resolve symbol 'abstracttree'".

also, in problem3.java says same thing:

-- "cannot resolve symbol 'bst'"

can run these files on ide (preferably intellij) & let me know if problem project settings or if made error in code.

looks classes in default package. class in default package cannot import class in same package. need put class in non-default package.


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