package Ġcom . ste ves ol ty s . app lem usic . model . track Ċ Ċ import Ġcom . ste ves ol ty s . app lem usic . model . Relationship Ċ Ċ /** Ċ Ġ* Ġ@ author ĠSteve ĠSol ty s Ċ Ġ*/ Ċ class ĠTrack Relationship Ġ: ĠRelationship () Ġ{ ĊĊĠĠĠ Ġvar Ġdata : ĠArray < Track >? Ġ= Ġnull Ċ }