What is Microsoft Assure Cognitive service : Microsoft Assure Cognitive services provide a set of precooked cloud services as API for the end user who is into machine learning portfolio. As an end user, we don't want to take the pain in managing a full stack machine learning infrastructure, we can avail it with subscription basis. This helps developers add Intelligent features to their products with very ease. The cognitive services are classified into Vision, Speech, Language, Knowledge, Search. The Emotion API is under Vision. How to get trial keys : There are keys for each service provides by them, here we need an Emotion API key and that can be found at here We will get one pair of keys and in that one is a spare one. Java Example Since all assure service is cloud-based, the client's program is accessing it through internet URL's, for that, we have to use HTTP client's such Apache HttpComponents that you can get it from here Below is the sa...