1.4-Software-Development-Principles

Deserializing complex JSON

We are going to practice deserializing a rather complex JSON collection with Jackson.

Create a new package and make sure the Jackson library is available for the project.

Note: You may need to read the Annotation part from the theory before attempting this assignment.

Assignment

Write a program that reads in a JSON file the weather for a city in a particular week:

The JSON file:

[
    {
        "location": "San Francisco",
        "forecast": [
            {
                "day": "Monday",
                "temperature": 20.5,
                "condition": "Sunny"
            },
            {
                "day": "Tuesday",
                "temperature": 18.3,
                "condition": "Cloudy"
            },
            // ... for the rest of the week
        ]
    },
    {
        "location": "New York",
        "forecast": [
            {
                "day": "Monday",
                "temperature": 10.5,
                "condition": "Cloudy"
            },
            {
                "day": "Tuesday",
                "temperature": 12.3,
                "condition": "Rainy"
            },
            // ... for the rest of the week
        ]
    },
    {
        "location": "Miami",
        "forecast": [
            {
                "day": "Monday",
                "temperature": 25.5,
                "condition": "Sunny"
            },
            {
                "day": "Tuesday",
                "temperature": 26.3,
                "condition": "Sunny"
            },
            // ... for the rest of the week
        ]
    }
]

Assignment

• Design the class structure described by the assignment.
• Annotate your constructor
  • If you can’t get this to work fall back to an empty constructor with setters for each member variable.
• Read the content to the JSON file.
• Output the mean temperarture for the city in that week:

San Francisco: XX
New York: XX
Miami: XX