Use the class, Invoice, provided to create an array of Invoice objects in a test class

named Program$4,$ also provided. Class Invoice includes four private instance

variables; partNumber $($type String$),$ partDescription $($type String$),$ quantity of the item

being purchased $($type int$),$ and pricePerItem $($type double$).$

Write a class named ProcessInvoices that use Lambdas and Streams to perform the

following queries on the array of Invoice objects and display the results:

a$.$ Sort the Invoice objects by partDescription, then display the results.

b$.$ Sort the Invoice objects by pricePerItem, then display the results.

c$.$ Map each Invoice to its partDescription and quantity, sort the results by quantity,

then display the results.

d$.$ Map each Invoice to its partDescription and the value of the Invoice $($i$.$e$.,$ quantity

$*$ pricePerItem$).$ Order the results by Invoice value.

e$.$ Modify Part $($d$)$ to select the Invoice values in the range $$200\mathrm{.}00$ to $$500\mathrm{.}00.$

f$.$ Find any one Invoice in which the partDescription contains the word $$Saw$.$

See the test class Program$4$ in the Program$4-$Template.java file for more details. Do

not modify the main method of this class. You will not receive credit for this

program, if you do$.$

All classes in this program must be public, non$-$static, and not nested in other

classes.

No input, processing or output should happen in the main method. All work

should be delegated to other non$-$static methods and handle all exceptions where

necessary.

Format all monetary values to two decimal places with a floating dollar sign $($$$).$ See the

sample output for more details