How to know if cucumber step has step defintion

[yoni simhi]

Hi Guys

I am new to cucumber java api

  . I am looking fora a java code which implements  cucumber api  in order to know if a certain step  from a feature file has a step  definition 

 ?I be able to get the step name into feature file using featureBuilder but once I get the name of the step , How  to know if it is implemented  or no 

I wasted a lot of time on internet and no find any  tutorial can help me 

I wil very very apreciate who can help me as  quick as possible

Thanks a lot in advance .

Yoni Simhi