Writing step definitions while using array of inputs in Gherkin Acceptance Test(BDD – approach)

Example scenario :-

Scenario : Assume something
Given : Assume something
When : I have 3 numbers “” as given below
| numbers |
| 1 |
| 2 |
| 3 |
Then : Assume something

In java code :-

I don’t know how to write the step definition for the above scenario without any regex in java code

Could someone write the step definition for the above scenario and change the data table into list of numbers