@startuml
!include style.puml
skinparam ClassFontColor #000000
skinparam ClassBorderColor #000000

title User press down key

package commandHistoryList {
    class State1 as "__ch0:String__"
    class State2 as "__ch1:String__"
    class State3 as "__ch2:String__"
}
State1 -[hidden]right-> State2
State2 -[hidden]right-> State3

hide State3

class Pointer as "Current Index = 2" #FFFFF

@end
