SCJP 1.6版考題 106

Given classes defined in two different files:
1. package util;
2. public class BitUtils{
3.   public static void process(byte[] b){/* more code here */}
4. }
1. package app;
2. public class SomeApp{
3.   public static void main(String[] args){
4.     byte[] bytes = new byte[256];
5.     //insert code here
6.   }
7. }
 

What is required at line 5 in class SomeApp to use the process method of BitUtils?
  A. process(bytes);
  B. BitUtils.process(bytes);
  C. util.BitUtils.process(bytes);
  D. SomeApp cannot use methods in BitUtils.
  E. import util.BitUtils.*; process(bytes);

解答

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Ans: C

解說:

SomeApp在app套件下， BitUtils在util套件下， SomeApp要存取BitUtils要先套BitUtils的套件名稱util， 
process方法是BitUtils的類別方法，所以直接用util.BitUtils.process表示。