randomize() is BASIC.
Open help and search for rand() function.
Thanks for your reply. Can you please explain in brief how does the 'seed' works ? Thanks in advance.
Well, you might better ask what part of the (pseudo)random number generation is unclear to you.
The 'seed' is a random (or not) starting value from which the (pseudo)random number generator starts to generate it's output. The same seed will result in the same sequence of generated numbers. Different seeds will result in different number sequences.
Ralf