This document provides an introduction and overview of an online food ordering project created using Java and object-oriented programming principles. It includes a UML class diagram that shows the class structure with an abstract Order class and subclasses for specific food and drink items. The project allows customers to select food or drink options, see prices, and process a payment. Arrays are used to display available food and drink choices. The summary identifies some defects to address, such as case sensitivity issues and inability to retrieve balances on large payments.

1. Introduction to Java Programming
Object Oriented Programming
Project: Online Food
Section 5
Instructor: ALI A.ALWAN ALJUBOORI
Participants:
 Wan Muhammad Nazmi Wan Abdul Halim 1414021
 Muhammad Zawawi 1418901
 Ahmad Haraz Bin Zaimi 1320003
 Muhd Muadz Bin Muhd Azmi 1411959

2. ABSTRACT
Thisjava projectisaboutonline foodordering.Providesinformationaboutthe servicesavailableforthe customers.
ThisprojectbasicallycontainsUML diagramand classesandobjects.One superclassOrder, under that hastwo sub
classes,FoodandDrink.Foodand Drinkwere inheritedbyseveral subclasseslike LemonandSamosa.Inaddition,it
includesinheritance,overridingandoverloading, arraysand GUI.
All classesspecifythe necessaryattributes,modifiersandmethods.The attributesare accordingtothe foodand
drinkand the modifiersare public,private andprotected,setandgetmethodsare included.
The graphical userinterface askthe userto enterwhethertheywantfoodordrinkor both,then it showsthe total
price on the GUI forthe payment.Arrayshave beenusedtoshow whatkindsof foodsanddrinksare available.

3. UML CLASS DIAGRAM
Order
-Quantity:int
-FoodName:String
-unitPrice:double
-TotalPrice:double
-amount:double
-balance:double
+Order()
+Order(quantity:int,FodName:String,unitPrice:double,TotalPrice:double,
amount:double,balance:double)
+getQuantity():int
+setQuantity(quantity:int):void
+setFoodName(FoodName:String):void
+getUnitPrice:double
+setUnitPrice(unitPrice:double):void
+getTotalPrice:double
+setTotalPrice(TotalPrice:double):void
+getAmount:double
+setAmount(amount:double):void
+getBalance:double
+setBalance(Balance:double):void
+toString():String

4. Drink
-totalDrink:double
-Status:Boolean
-Type:String
-size:char
+Drink
+Drink(totalDrink:double,Status:
Boolean,Type:String,size:char)
+getTotalDrink()
+setTotalDrink(totalDrink:double)
+getStatus():Boolean
+getType():String
+getSize():char
Food
-totalFood:double
-FoodName:String
-size:char
+Food()
+Food(TotalFood:double,size:char)
+getTotalFood() :double
+getTotalPrice():double
+setTotalPrice() :double
+getSize() :char
SamosaCalc1
-totalPirce_samosa:double
-quantityS:int
-flavourS:String
+SamosaCalc1()
+SamosaCalc1(quantityS:int,flavourS
: String)
+getQuantity() :int
+setQuantity() :void
+getFlavour() :String
+setFlavour(StringFlavour) :void
+getTotalPriceS( StringFlavour)
+setSize() :void
DrinkC
-totalDrink:int
-totalPrice:int
-DrinkName:String
-size:String
+DrinkC()
+DrinkC(TotalDrink :int,TotalPirce :int,
DrinkName:String,size:String)
+getTotalDrink() :int
+setTotalDrink() :void
+getTotalPrice():double
+setTotalPrice() :void
+getSize() :String
+setSize() :void

5. List of defects:
1. Small letter-case cannotbe used.Forexample the usermustuse upper-case letterinchoose drinktab.
2. Cannotretrieve the balance of money if give bigmoney
3. Back Buttonto return to previousinterface cannotbe done foranychecking.
LemonCalc1
-oquant: int
-tprice : double
-flavourR:String
+LemonCalc1()
+LemonCalc1(oquant:int,flavourR:
String)
+getQuant() :int
+setQuantity(intoquant) :void
+getTotalPriceR( StringFlavour)