单选题Which gets the name of the parent directory file “file.txt”?()A String name= File.getParentName(“file.txt”);B String name= (new File(“file.txt”)).getParent();C String name = (new File(“file.txt”)).getParentName();D String name= (new File(“file.txt”)).getParentFile();E Directory dir=(new File (“file.txt”)).getParentDir();  String name= dir.getName();

单选题
Which gets the name of the parent directory file “file.txt”?()
A

 String name= File.getParentName(“file.txt”);

B

 String name= (new File(“file.txt”)).getParent();

C

 String name = (new File(“file.txt”)).getParentName();

D

 String name= (new File(“file.txt”)).getParentFile();

E

 Directory dir=(new File (“file.txt”)).getParentDir();  String name= dir.getName();


参考解析

解析: 暂无解析

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