How to create a random number with a combination of 5 digits and charter flights

I want to generate such a random number

> ADF1845CFT > ADF1864ATY > ADF18AT65Y

I successfully created a 5-digit number with numbers

I am using various solutions

> How to make combined random number matrix > Java random number with given length

Other methods

Through these methods, I created a successful random 5-digit number

Any help to appreciate

Solution

You can use random UUIDs

Example:

final String randomCode = UUID.randomUUID().toString();
// or you can play with the len...
final String randomCode2 = UUID.randomUUID().toString().substring(0,5);