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（）；
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（）；
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