public FirstDeep(ISecondDeep secondDeep) { this.secondDeep = secondDeep; }
readonly ISecondDeep secondDeep; //egzemplarz interfejsu public FirstDeep(ISecondDeep secDeep) //injekcja w konstruktorze { secDeep = secondDeep; //przypisanie parametru }
public FirstDeep(ISecondDeep oa) { this.oa = oa; }