How to calculate java BufferedImage filesize

Question

I have a servlet based application that is serving images from files stored locally. I have added logic that will allow the application to load the image file to a Buffered

Answer 1

Well, the BufferedImage doesn't know that it's being written as a JPEG - as far as it's concerned, it could be PNG or GIF or TGA or TIFF or BMP... and all of those have different file sizes. So I don't believe there's any way for the BufferedImage to give you a file size directly. You'll just have to write it out and count the bytes.