Ikk：新頁面: 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. ...

2013-03-30T05:35:30Z

新頁面: 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. ...

新頁面

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);

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<span style="font-size: medium;">Ans: C </span>

<span style="font-size:medium;"> 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。

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{{SCJP 1.6版考題講解}}

SCJP 1.6版考題 106 - 修訂歷史

Ikk：新頁面: 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. ...