SCJP 1.6版考題 013

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

解答

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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){