试题详情
- 多项选择题 public class Car { private int wheelCount; private String vin; public Car(String vin) { this.vin = vin; this.wheelCount = 4; } public String drive() { return “zoom-zoom”; } public String getInfo() { return “VIN: “+ vin + “wheels: “+ wheelCount; } } And: public class MeGo extends Car { public MeGo(String vin) { this.wheelCount = 3; } } What two must the programmer do to correct the compilation errors?()
A、 insert a call to this() in the Car constructor
B、 insert a call to this() in the MeGo constructor
C、 insert a call to super() in the MeGo constructor
D、 insert a call to super(vin) in the MeGo constructor
E、 change the wheelCount variable in Car to protected
F、 change line 3 in the MeGo class to super.wheelCount = 3;
- D,E
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