Make your battleship project more impressive by introducing any of these modifications.

Implement drag and drop to allow players to place their ships.
Create a 2-player option that lets users take turns by passing the laptop back and forth, or by spinning the monitor around on a desktop. Implement a ‘pass device’ screen so that players don’t see each other’s boards!
Polish the intelligence of the computer player by having it try adjacent slots after getting a ‘hit’.