java.io.FileNotFoundException:(Access is denied) convert byte array to image file

Question

I have a byte array, i want to create an image file(bmp file) of byte array. I create an images folder in src (my path is src/images/test.bmp). my code is in below, in

OutputStream stream = new FileOutputStream(file);

i get error. what is my problem? How can i solve this?

public static void saveImage() {
    String s="........................";
    byte[] dataCustImg = Base64.decode(s.getBytes());

    File file = new File("/images/test.bmp");
    if (file.exists()) {
        file.delete();
    }
    file = new File("/images/test.bmp");
    file.mkdirs();
    try {
        OutputStream stream = new FileOutputStream(file);

        stream.write(dataCustImg);
        stream.close();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

Error:

java.io.FileNotFoundException: \images\test.bmp (Access is denied)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(Unknown Source)
at java.io.FileOutputStream.<init>(Unknown Source)

Answer 1

File file = new File("/images/test.bmp");

OK.

if (file.exists()) {
    file.delete();
}

Redundant. Remove. new FileOutputStream() will create a new file.

file = new File("/images/test.bmp");

Redundant. Remove. It already is a File with this name.

file.mkdirs();

The problem is here. Change to

file.getParentFile().mkdirs();

You are creating a directory called "/images/test.bmp", rather than just ensuring that "/images" exists. This will cause new FileOutputStream() to fail with an access permission, as you can't overwrite a directory with a file.

try {
    OutputStream stream = new FileOutputStream(file);

Now carry on. Note that you will first have to delete the directory "/images/test.bmp", manually.