File downloader

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Implement a downloadFile(String urlString, Path downloadDirectory) method whose inputs are a URL to a file to be downloaded and the destination folder for the download. The method must create a URL object and download the file's contents to the local disk. Download it to a temporary directory first so that if the download fails, there won't be partially downloaded files in your directory.

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Олег Байбула

Level 32 , Ukraine

Expert

10 March, 14:23

The task tells: "Only use classes and methods from the java.nio package." The correct solution uses: java.io.InputStream; I tried to break my brain not to use java.io.InputStream; It is definitely zero star exersize.

Skynet

Level 40 , USA

21 June 2021, 19:35

Hint: to get the file name from the given urlString, you can use: urlString.substring(urlString.lastIndexOf("/"));

Justin Smith

Level 38 , Greenfield, USA, United States

4 August 2022, 13:40

Also an important thing I learned the hard way in this task: The method String URL.getFile() does not do what you might think it does. I tried that and struggled for a long time with it. Also, your code doesn't validate. I tried using it, and after if failed to validate, I changed only that line to the official solution line, and it passed. I think... shouldn't it be urlString.substring(urlString.lastIndexOf("/") + 1)?

Andrei

Level 41

15 June 2021, 12:47

I liked this exercise, it was difficult but manageable.