SCJP題庫第013題

1. public class Barn{

2.   public static void main(String[] args){

3.     new Barn.go("hi", 1);

4.     new Barn.go("hi", "world", 2);

5.   }

6.   public void go(String... y, int x){

7.     System.out.print(y[y.length-1] + " ");

8.   }

9. }

What is the result?

A. hi hi

B. hi world

C. world world

D. Compilation fails.

E. An exception is thrown at runtime

Ans:D

解說:

public void go(String... y, int x){

不定數量的參數必須寫在參數列的後面，上式需改為

public void go(int x , String... y){