Java: Data Science Made Easy

Processing the JSON input

The Twitter data is retrieved using JSON format. We will use Twitter4J (http://twitter4j.org) to extract the relevant parts of the tweet and store in the corresponding field of the TweetHandler class.

The TweetHandler class's processJSON method does the actual data extraction. An instance of the JSONObject is created based on the JSON text. The class possesses several methods to extract specific types of data from an object. We use the getString method to get the fields we need.

The start of the processJSON method is shown next, where we start by obtaining the JSONObject instance, which we will use to extract the relevant parts of the tweet:

public TweetHandler processJSON() {     try {  JSONObject jsonObject = new ...