File f = new File("d") 和 File(directory, "f")问题

[Sodino]

Question 95
Given:
10. class MakeFile {
11. public static void main(String[] args) {
12. try {
13. File directory = new File(“d”)
14. File file = new File(directory,”f”)
15. if(!file.exists()) {
System.out.println("file.exists() is true");//自添的测试代码，题目没有
16. file.createNewFile();
17. }
18. } catch (IOException e) {
System.out.println("file.exists() is false");//自添的测试代码，题目没有
19. e.printStackTrace
20. }
21. }
22. }
The current directory does NOT contain a directory named “d.”
Which three are true? (Choose three.)

A. Line 16 is never executed.
B. An exception is thrown at runtime.
C. Line 13 creates a File object named “d”
D. Line 14 creates a File object named “f”
E. Line 13 creates a directory named “d” in the file system
F. Line 16 creates a directory named “d” and a file “f” within it in
file system.
G. Line 14 creates a file named “f” inside of the directory named “d”
the file system.
Answer: BCD


我在eclipse里测试了一下，怎么输出是：
file.exists() is true
file.exists() is false
java.io.IOException: 系统找不到指定的路径。
at java.io.WinNTFileSystem.createFileExclusively(Native Method)
at java.io.File.createNewFile(Unknown Source)
at t.main(t.java:9)
问题一：有true又有false,如何是这样？？？
问题二：谁能清楚地解释一下各个选项的对错啊？谢谢。。

[cntmi]

既然来了，总得给点辛苦费吧？

[不善^]

可以现在结贴 上面有个结贴去

[aaa7782814]

既然这样结贴吧。。接分。哈哈^^

[dj3688]

结贴吧

[meihuiyu]

jf

[Sodino]

晕!!!本人今天梦游发的这个帖子,此帖无效!!!发错帖子了,从word处粘贴过来的的汗...,,,,,,,,

可惜无法取消,提示说得24小时以后才能结贴.


此帖无效!!!!!!1

[lzbang]

发表于：2009-04-01 09:34:08 这时候还在梦游啊。。。实际我在也梦游，呵呵

[Sodino]

[Quote=引用 8 楼 cloneOfSo 的回复:]
我又来了..呵呵
[/Quote]

专业回收垃圾帖,呵呵