This may seem a useless project. but i want to do some test which requires some strings with same Hashcode but not same strings. I couldn't find the example so I decided to write a simple program to do it for me. What i have done was to generate two random strings over and over until they generate same Hashcode. This code seems working (Theoretically) but it may takes centuries to complete. So I was thinking to do vice versa and generate two strings from 1 HashCode.