protected boolean addSelfsDVDDate(String name, long ID, int rentAmount, int buyAmount) {
		for (DVDUser a : this.userDVDArrayList) {	// ЧԻԼ
			if (a.getName().equals(name)) {
				return false;
			}
			if (a.getID() == ID) {
				return false;
			}
		}
		this.userDVDArrayList.add( new DVDUser(name, ID, rentAmount, buyAmount) );
		return true;
	}