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多項(xiàng)選擇題

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;

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