如何使用jdk7移动目录

Question

Using jdk7 , I am trying to use the java.nio.file.Files class to move an empty directory, let's say Bar , into another empty directory, let's say Foo

Path source = Paths.get("Bar");
Path target = Paths.get("Foo");
try {
    Files.move(
        source,
        target,  
        StandardCopyOption.REPLACE_EXISTING);
} catch (IOException e) {
    e.printStackTrace();
}

After executing that code snippet, I expected that the Bar directory would be in the Foo directory ( ...\Foo\Bar ). Instead it is not. And here's the kicker, it's been deleted as well. Also, no exceptions were thrown .

Am I doing this wrong?

NOTE

I'm looking for a jdk7-specific solution.I am also looking into the problem, but I figured I'd see if there was anyone else playing around with jdk7.

EDIT

In addition to the accepted answer, here's another solution

Path source = Paths.get("Bar");
Path target = Paths.get("Foo");
try {
    Files.move(
    source,
    target.resolve(source.getFileName()),  
    StandardCopyOption.REPLACE_EXISTING);
} catch (IOException e) {
    e.printStackTrace();
}

Answer 1

I didn't realize jdk7 java.nio.file.Files is a necessity, so here is the edited solution. Please see if it works coz I have never used the new Files class before.

Path source = Paths.get("Bar");
Path target = Paths.get("Foo", "Bar");
try {
    Files.move(
        source,
        target,  
        StandardCopyOption.REPLACE_EXISTING);
} catch (IOException e) {
    e.printStackTrace();
}

Answer 2

http://docs.oracle.com/javase/7/docs/api/java/nio/file/Files.html
suppose we want to move a file to new directory, keeping the same file name, and replacing any existing file of that name in the directory:

 Path source =... Path newdir =... Files.move(source, newdir.resolve(source.getFileName()), REPLACE_EXISTING); //Files.move(source, newdir.resolve(source.getFileName()), StandardCopyOption.REPLACE_EXISTING);

Answer 3

In the javadoc for the Files.move method you will find an example where it moves a file into a directory, keeping the same file name. This seems to be what you were looking for.