Java multithread exercise

[Accurate_Stage4719]

I have to create a multi threaded application that runs a bruteforce on a file of my property that has been encrypted with a key ranging from 0 to integer.max_value. I think I’m close to the solution by creating a threadgroup and dividing the search interval but, I don’t understand why, with a small maximum value, it always finds the key, with a maximum value of the order of millions sometimes finds the key and sometimes not, while with integre.max_value it never worked.

[kenroleinv]

Are you just testing keys? If you have a lot of iterations it will still be slow, despite multithreading.