英国家庭开端计划的创立人是()
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?() [" insert a call to this() in the Car constructor"," insert a call to this() in the MeGo constructor"," insert a call to super() in the MeGo constructor"," insert a call to super(vin) in the MeGo constructor"," change the wheelCount variable in Car to protected"," change line 3 in the MeGo class to super.wheelCount = 3;"]
规范性用语
英国的幼儿教育通常指()
上门直销重点抓好以下几点:()、()、()。
道德模式