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javaarrays
Mus
Mus

Reputation: 7550

Java - Arrays and Method Parameters

How can I pass an array of filenames into the following method:

public static double getFitness(int x, int y, int r, BufferedImage image);

I currently have a method which creates an array of filenames from a given directory:

//Default image directory (to convert to greyscale).
static File dir = new File("images");
//Array of original image filenames.
static File imgList[] = dir.listFiles();

public static void processGreyscale(){
    if(dir.isDirectory()){
        for(File img : imgList){
            if(img.isFile()){
                //functions are carried out here.
            }
            else{
                                    //functions are carried out here.
            }
        }
    }
}

The getFitness method scores the fitness of an image (...BufferedImage image);) based on the main region of interest (ROI).

What I am looking for is a way to run the getFitness method on the array of filenames; something like this:

public static double getFitness(int x, int y, int r, fileArray)

Can this be done?

UPDATE:

Thank you all for your great suggestions; however, I should mention that I wish to leave the method parameters the same/unchanged as the fitness function is affected (negatively) if I change the passed parameters.

Is there any way that I can run the fitness function on all files/filenames within imgList[]?

What I'm hoping for is this:

public static double getFitness(int x, int y, int r, BufferedImage image){
    use filenames stored in imgList[] to take place of 'image'
    getFitness of `image`
    next image name
}

Is this possible?

Upvotes: 1

Views: 197

Answers (4)

javaCity
javaCity

Reputation: 4318

You can do File fileArray[] = new File[numberOfFiles]; then specify a counter to store in the array such as counter = 0 and increment the value of counter each time fileName is added to the array fileArray[counter] = img.getName(); counter++;

then send the array in your desired method public static double getFitness(x, y, r, fileArray);

Upvotes: 0

Petar Minchev
Petar Minchev

Reputation: 47413

Yes, it is possible.

This is the method signature:

public static double getFitness(int x, int y, int r, File[] fileArray)

And this is the calling code:

getFitness(1, 1, 1, imgList);

Upvotes: 3

Eugene Kuleshov
Eugene Kuleshov

Reputation: 31795

You can specify parameter type as File[] fileArray

Upvotes: 0

Richard J. Ross III
Richard J. Ross III

Reputation: 55593

Just pass the array?

public static double getFitness(int x, int y, int r, File[] files);

Upvotes: 1

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