178. Given:
 1. public class Target{
 2. private int i = 0；
 3. public int addOne(){
 4. return ++i； 
5. }
 6. }
 And: 
1. public class Client{ 
2. public static void main(String[] args){
 3. System.out.println(new Target().addOne())； 
4. } 
5. } Which change can you make to Target without affecting Client?
(A) Line 4 of class Target can be changed to return i++；
(B) Line 2 of class Target can be changed to private int i = 1；
(C) Line 3 of class Target can be changed to private int addOne(){
(D) Line 2 of class Target can be changed to private Integer i = 0；

答案：登入後查看
統計： A(3), B(2), C(2), D(2), E(0) #2720742