Ikk：新頁面: 1. package utils; 2. 3. public class Repetition { 4. public static String twice(String s){return s + s;} 5. } and given another class Demo: 1. // insert code here 2. 3. publ...

2013-03-30T05:51:02Z

新頁面: 1. package utils; 2. 3. public class Repetition { 4. public static String twice(String s){return s + s;} 5. } and given another class Demo: 1. // insert code here 2. 3. publ...

新頁面

1. package utils;
2.
3. public class Repetition {
4. public static String twice(String s){return s + s;}
5. }
and given another class Demo:
1. // insert code here
2.
3. public class Demo {
4. public static void main(String[] args){
5. System.out.println(twice("pizza"));
6. }
7. }

Which code should be inserted at line 1 of Demo.java to compile and run Demo to print "pizzapizza"?
A. import utils.*;
B. static import utils.*;
C. import utils.Repetition.*;
D. static import utils.Repetition.*;
E. import utils.Repetition.twice();
F. import static utils.Repetition.twice;
G. static import utils.Repetition.twice;

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

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

<span style="font-size:medium;"> 解說:
在第5行中使用twice這個靜態方法，這個方法是Repetition 類別下的成員方法
可以用import static utils.Repetition.twice;方式將twice類別方法匯入直接使用。

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{{SCJP 1.6版考題講解}}

SCJP 1.6版考題 096 - 修訂歷史

Ikk：新頁面: 1. package utils; 2. 3. public class Repetition { 4. public static String twice(String s){return s + s;} 5. } and given another class Demo: 1. // insert code here 2. 3. publ...