Final answer:
Depending on the programming language, different commands or methods, such as 'json.load()' in Python or 'JSON.parse()' in JavaScript, are used to create objects that parse streams.
Step-by-step explanation:
To create an object that parses a stream, various commands could be utilized depending on the programming language being used. For instance, in Python, one might use the json.load() method to parse a JSON object from a file. In JavaScript, JSON.parse() is used to parse a JSON string. For XML parsing, Python has libraries like ElementTree and in Java, you could use SAXParser. Each of these provides a way to analyze a stream of data and create objects.