What is the fastest way to draw pixels in Java

Question

I have some code that generates particles at random locations, and moving in random directions and speed.

Each iteration through a loop, I move all the particles, an

Answer 1

I see a huge improvement in setting the bytes the data of a BufferedImage. To do that you'll need get the data from the BufferedImage, turn it into a byte array, set each byte (depending on the type of the image, the byte arrangement will be different. For example: ARGB will have one byte for alpha, one for red, one for green, one for blue. One pixel will be a block of 4 consecutive bytes.) Read more about getting the data here