How do I set an Apple ID password?
how set idpassword
[Re-Titled by Moderator]
You made one when you created your account. use it to sign in.
Read this support article to learn how to sign in with your Apple ID on different devices--> Sign in with your Apple ID - Apple Support
For an Apple Mobile device:
1. Open the Settings app.
2. Tap Sign in to your [device].
3. Enter your Apple ID and password.
4. If prompted, enter the six-digit verification code sent to your trusted device or phone number and complete sign in.