Question: Write a Java program: Subscription Cost calculator Consider the following: 1] Use Design principles and design patterns 2] Write Executable code with Junit Tests and
Write a Java program: Subscription Cost calculator
Consider the following:
1] Use Design principles and design patterns
2] Write Executable code with Junit Tests and Console Tests.
Given the pricing plan (monthly) for products and customers would subscribe to the list of products.
JSON Structure :
[{
"planId": "BASIC",
"monthlyCost": "9.99"
}, {
"planId": "STANDARD",
"monthlyCost": "49.99"
}, {
"planId": "PREMIUM",
"monthlyCost": "249.99"
}]
// Customer subscription information
{
"customerId": "c1",
"product": {
"name": "Jira",
"subscription" : {
"planId": "BASIC",
"startDate": "2021-01-01" // YYYY-MM-DD format
}
}
}
Create model classes and service class (s) (CostExplorer) to expose the below two APIs:
monthlyCostList(): Array/List of size 12 filled with the cost incurred in each month of the unit year
annualCost(): Total cost in a unit year
Consider the annual package from JAN - DEC.
For simplicity, let's assume we will charge the customer for the entire month even if the customer is subscribing any day after the 1st of the month.
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