Generating Password and OTP in Java

In this project, you will learn how to generate OTP (One Time Password) string in Java?

This program will generate OTP as a string (4 digits PIN) differently at every run. When we run the program, the program will return 4 digits PIN, which will be different from last generate OTP (One Time Password).

Many a time we forget our passwords and we opt for Forget password option and within no time we get a new password at our registered email-ID or phone no. to login to our account. And every time we get a different password.
Sometimes we access our bank accounts while shopping from an online store or many more ways, in order to verify our transition from the bank account, they send us OTP(One Time Password) on our registered phone no. or our email-ID, within no time.

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