The First National Bank of San Diego has tasked you to write a mortgage analyzer library for its loan officers to use. For this lab, you are only required to create a set of Java classes that represent the applications business logic.

Using the following simple use cases implement a Java class e$.$g$.$ MortgageAnalyzer and any potential Java interfaces for the following actions :

The user can enter the amount of the loan, the annual rate of interest, and the duration of the loan in months $$ this will require public member functions that can be used to enter this information into the MortgageAnalyzer class.

The user can run a verification check on the information that was entered to make sure it is reasonable $$ this can be a verify member function that returns a Boolean true on success.

If bad or anomalous data was entered in setting up details of the loan the user should be advised and allowed to correct the input data $$ a public correctInput member function as an example.

Once the data is verified to be correct or reasonable the user should invoke a public member function on the class named calculateMortgageDetails to get the following example information using one or a series of API calls internal to the class:

Amount of Loan $-$ $$140000$

Annual Interest Rate $-8\mathrm{.}00\%$

Duration of loan in months $-360$

Monthly payment $-$ $$1027\mathrm{.}27$

Total interest paid $-$ $$229,817\mathrm{.}20$

The formula for the monthly payment is:

payment $=$ p $*$ r $*(1+$ r$)$n $/((1+$ r$)$n $1)$

where p is the principal amount of the loan, r is the monthly interest rate $($annual rate divided by $12)$ given as a number between $0($for $0$ percent$)$ and $1($for $100$ percent$),$ and n is the duration of the loan $($number of pay periods e$.$g$.,360).$ The formula for the total interest paid is:

Total interest $=$ n $*$ payment $$ p

In addition create a unit test for your library, and as an example, the following data can be used to test your program:

Input:

Amount of Loan $-$ $$140000$

Annual Interest Rate $-8\mathrm{.}00\%$

Duration of loan in months $-360$

Output:

Monthly payment $-$ $$1027\mathrm{.}27$

Total interest paid $-$ $$229,817\mathrm{.}20$