Resizing array in Java throws OutOfMemoryError

Question

I have written a method to resize an array in Java:

public HUD resize(float factor){
    int[] array = new int[(int)Math.pow(pixels.length * factor, 2)];//Create new array
    for(int y = 0; y < height; ++y){
        for(int x = 0; x < width; ++x){
            array[(int)((x * 2) + (y * 2) * width * factor)] = pixels[x + y * width];
            array[(int)((x * 2 + 1) + (y * 2) * width * factor)] = pixels[x + y * width];
            array[(int)((x * 2) + (y * 2 + 1) * width * factor)] = pixels[x + y * width];
            array[(int)((x * 2 + 1) + (y * 2 + 1) * width * factor)] = pixels[x + y * width];
        }
    }
    pixels = array;
    width = (int)(width * factor);
    height = (int)(height * factor);
    return this;
}

This method is only called once and an OutOfMemoryError is given out whenever its called

Well cause you are probably trying to create a huge array on the second line — DZDomi, Dec 17 '16 at 23:39
@DZDomi not even that big, I am starting at 12800 entries and go to 25600 entries — Lucas Romier, Dec 17 '16 at 23:43

score 1 · Accepted Answer · edited May 23 '17 at 12:24

1

Increasing the heap size of your application may prevent the OutOfMemoryError. This post on SO explains how to do this.

edited May 23 '17 at 12:24

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answered Dec 17 '16 at 23:45

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Resizing array in Java throws OutOfMemoryError

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