CODEWITHSUNDEEP
java
KKKM
KKKM

Reputation: 11

How to use path class?

public static void main(String[] args) {
    java.nio.file.Path p = Paths.get("E:/test/Hellow.txt");

    try {
        FileOutputStream f = new FileOutputStream(p.getParent() + "hellow2.txt");
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
}

Hi, How to use path class?

I want input file E:/test/Hellow.txt to be output to E:/test/Hellow2.txt

But I'm getting E:\testHellow2.txt as the output file name. How do I fix this?

Upvotes: 0

Views: 108

Answers (1)

deHaar
deHaar

Reputation: 18568

You should resolve the parent directory of the source file with the new file name the copy should get.

Have a look at this example:

public static void main(String[] args) {
    // provide the source file (must exist, won't check for that here)
    Path sourceFile = Paths.get("D:/ZZ--temp/Hellow.txt");
    // then try to copy source to target
    try {
        Path copy = Files.copy(sourceFile,
                /* get the parent directory of the source file 
                 * and resolve it with the file name of the copy
                 */
                sourceFile.getParent().resolve("Hellow2.txt"),
                StandardCopyOption.REPLACE_EXISTING);

        if (Files.exists(copy)) {
            System.out.println("Successfully copied"
                    + sourceFile.toAbsolutePath().toString()
                    + " to "
                    + copy.toAbsolutePath().toString());
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

It really copies the file and outputs the following on my machine (paths not equal to yours!)

Successfully copiedD:\ZZ--temp\Hellow.txt to D:\ZZ--temp\Hellow2.txt

Upvotes: 1

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