Admin API Client example is failing

I am running “Duo Admin API Example client” appln and replacing ikey skey and host values
directly in the class instead of cmd and getting below error:-

Duo Admin Demo
error making request
java.lang.Exception: Duo error code (40102): Invalid integration key in request credentials

Got the answer:-

We need to add Admin API application to your account and use corresponding ikey, skey and host for that application.