複選題
89. Given: 
1. public class Car{
 2. private int wheelCount; 
3. private String vin; 
4. public Car(String vin){ 
5. this.vin = vin; 
6. this.wheelCount = 4; 
7. }
 8. public String drive(){
 9. return "zoom-zoom"; 
10. }
 11. public String getInfo(){ 
12. return "VIN: " + vin + "wheels: " + wheelCount; 
13. } 
14. } 
And:
 1. public class MeGo extends Car{
 2. public MeGo(String vin){ 
3. this.wheelCount = 3; 
4. }
 5. }
 What two must the programmer do to correct the compilation errors? (Choose two.)
(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

答案:登入後查看
統計: A(0), B(1), C(0), D(1), E(0) #2722979