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