public shop()
{
this.apply = new HashSet<apply>();
this.apply1 = new HashSet<apply>();
this.check = new HashSet<check>();
this.inBase = new HashSet<inBase>();
this.order = new HashSet<order>();
this.outBase = new HashSet<outBase>();
this.staff = new HashSet<staff>();
this.stock = new HashSet<stock>();
}