Given:
	Which two methods, inserted independently at line 17, correctly complete the Sales class?()A:double getSalesAmount() { return 1230.45; }
B:public double getSalesAmount() { return 1230.45; }
C:private double getSalesAmount() { return 1230.45; }
D:protected double getSalesAmount() { return 1230.45; }
出自:Oracle认证