In java please, Write a password generator that includes upper and lowercase letters, numbers, and special charactors.

Utilize userInput$(),$ randUpper$(),$ randLower$(),$ randNum$()$ and randSpecialChar$()($but not limited to these$)$ to simplify the main$()$ method.

ASCII codes for Special characters: $\backslash (33\backslash$sim $47\backslash )$

Upper characters: $6590$

Lower characters: $97122$

length$(8$ to $20)?10$

CS$2$y$*$e$\text{'}25\text{'}$