SCJP Chapter 01 Self Test Qn no. 3

[kiruthigha rajan]

1. class Voop {
2. public static void main(String [] args) {
3. doStuff(1);
4. doStuff(1,2);
5. }
6. // insert code here
7. }
Which, inserted independently at line 6, will compile? (Choose all that apply.)
A. static void doStuff(int... doArgs) { }
B. static void doStuff(int[] doArgs) { }
C. static void doStuff(int doArgs...) { }
D. static void doStuff(int... doArgs, int y) { }
E. static void doStuff(int x, int... doArgs) { }

Answer:
-> A and E use valid var-args syntax.
My Doubt Is Why "Option B" Is Wrong ??
thanks in advance

[Md. Minhajur Rahman]

Hello rajan,
Option B is not correct. Because If you use it, then at line 3 and 4 will cause compilor error as it couldn't find match. Because doStuff(1) expect a function that takes an integer argument not an integer array argument (except var-args). Same reason for doStuff(1,2).

[kiruthigha rajan]

Md. Minhajur Rahman wrote:Hello rajan,
Option B is not correct. Because If you use it, then at line 3 and 4 will cause compilor error as it couldn't find match. Because doStuff(1) expect a function that takes an integer argument not an integer array argument (except var-args). Same reason for doStuff(1,2).

now its clear..thanks alot sir..