That's a little vague. Do you mean cartoony explosions, realistic explosions, ones that Processing draws, ones that are loaded into Processing (a series of images), ect? If you could provide an image or a more descriptive explanation it would give a better idea of how to help you.

Please take notice:

• Moved. The Programming Questions section is for questions about code you have written. You haven't shown any code, so currently this belongs in General Discussion.
• Do not double post. The only reason this topic wasn't deleted is because it already has a reply.

For more information, see the forum guidelines.

There are a lot of code examples on OpenProcessing, perhaps you can find some 'inspiration' there.

" Do not double post. The only reason this topic wasn't deleted is because it already has a reply."
Thanks. Since it was only me answering, I deleted the duplicate topic, and I will paste my (a bit silly) answer here.

" is there a code which can do this"
Yes, of course, the code that you will write...
Where is the fun in using code somebody else wrote?
Beside, your request is very vague...

Well, not so silly, it is as precise as the request itself...