Customer -ID:int -name:String -discount:int Discount rate in percent +Customer(ID:int,name:String, discount:int) +getID():int +getName ():String +getDiscount():int +setDiscount (discount:int):void...

): Giving the following two class diagrams. Answer the following:
1- Write the codes for the Customer class. (Customer.java)
2- Write the codes for the Invoice class. (Invoice.java)
3- Write a test driver called “CustomerInvoiceDemo” to test all the public

methods. (CustomerInvoiceDemo.java

Extracted text: Customer -ID:int -name:String -discount:int Discount rate in percent +Customer(ID:int,name:String, discount:int) +getID():int +getName ():String +getDiscount():int +setDiscount (discount:int):void +toString():String "name (ID)" %3D