How to create Random number with 5 digit combined of number and charter

I want to generate the random number like that

• ADF1845CFT

• ADF1864ATY

• ADF18AT65Y

Note: There I FIX the ADF18 I want only take the next 5 digit with number and charter

I am successfully create the 5 digit with number

There is Various solution I am using

• How to make combined random number matrix

• Java random number with given length

etc. method

With these method I am create successful random 5 digit numbers.

Any Help Appreciate....