@startuml
package com.iluwatar.privateclassdata {
  class Stew {
    - numCarrots : int
    - numMeat : int
    - numPeppers : int
    - numPotatoes : int
    + Stew(numPotatoes : int, numCarrots : int, numMeat : int, numPeppers : int)
    + mix()
    + taste()
  }
  class App {
    + App()
    + main(args : String[]) {static}
  }
  class StewData {
    - numCarrots : int
    - numMeat : int
    - numPeppers : int
    - numPotatoes : int
    + StewData(numPotatoes : int, numCarrots : int, numMeat : int, numPeppers : int)
    + getNumCarrots() : int
    + getNumMeat() : int
    + getNumPeppers() : int
    + getNumPotatoes() : int
  }
  class ImmutableStew {
    - data : StewData
    + ImmutableStew(numPotatoes : int, numCarrots : int, numMeat : int, numPeppers : int)
    + mix()
  }
}
ImmutableStew -->  "-data" StewData
@enduml