export class Student {
  constructor(
    private _name?: string,
    private _matrikelnummer?: number,
  ) {
  }

  get name(): string|undefined { return this._name; }
  set name(name: string) { this._name = name; }

  get matrikelnummer(): number|undefined { return this._matrikelnummer; }
  set matrikelnummer(matrikelnummer: number) { this._matrikelnummer = matrikelnummer; }
}