CPU Profiling Explained

These days I play a lot with CPU profiling tools (i.e., the tools that help to optimize the execution time of a program) and spent some time explaining to myself terminology and approaches to interpretation of profiling results. From a naive point of view, in order to speed up a program it is enough to [...]

Image manipulation in Java

Created a small and simple utility class for myself to be able to perform common operations on images in Java.
Using this class you can load and save images, you’re able to resize images maintaining aspect ratio, you’re able to save jpeg images with specified compression, you can rotate images to any given angle, you can also watermark images.
Hope it’ll save you some time.