@startuml
package com.iluwatar.adapter {
  class App {
    + App()
    + main(args : String[]) {static}
  }
  interface BattleShip {
    + fire() {abstract}
    + move() {abstract}
  }
  class Captain {
    - battleship : BattleShip
    + Captain()
    + Captain(battleship : BattleShip)
    + fire()
    + move()
    + setBattleship(battleship : BattleShip)
  }
  class BattleFishingBoat {
    - boat : FishingBoat
    + BattleFishingBoat()
    + fire()
    + move()
  }
  class FishingBoat {
    + FishingBoat()
    + fish()
    + sail()
  }
}
BattleFishingBoat -->  "-boat" FishingBoat
Captain -->  "-battleship" BattleShip
Captain ..|> BattleShip 
BattleFishingBoat ..|> BattleShip 
@enduml