Based on the following UML, which of the following is NOT a valid object:

Loan

annualinterestRate: double

numberofYears: int

$-$loanAmount: double

$-$loanDate: java.util. Date

$+$Loan $()$

$+$Loan $($annualinterestRate: double, numberofYears: int, loanAmount: double$)$

$+$getAnnualinterestRate $()$: double

$+$getNumberofYears $()$: int

$+$getLoanAmount $()$: double

$+$getLoanDate$()$: java.util. Date

$+$setAnnualinterestRate $($

annualinterestRate: double$)$: void

setNumberofYears $($

numberofYears: int$)$: void

setLoanAmount $($

loanAmount: double$)$: void

$+$getmonthlypayment$()$: double

$+$getTotalPayment $()$: double