What is the best way to scale images in Java?

Question

I have a web application written in Java (Spring, Hibernate/JPA, Struts2) where users can upload images and store them in the file system. I would like to scale those images

Answer 1

Have a look at the Java Image I/O API to read/write the image. Then use AffineTransform to resize.

Also, here's a complete example using java.awt.Image.