Using a script in Java

I'm new in Java, and I need to run the following scraper in order to crawl google play: [login to view URL] Can anybody tell me how should I run this scraper and get the data inclduing: app: Retrieves the full detail of an application. list: Retrieves a list of applications from one of the collections at Google Play. search: Retrieves a list of apps that results of searching by the given term. developer: Returns the list of applications by the given developer name. suggest: Given a string returns up to five suggestion to complete a search query term. reviews: Retrieves a page of reviews for a specific application. similar: Returns a list of similar apps to the one specified. permissions: Returns the list of permissions an app has access to