单选题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;

单选题
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;


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