ItemizedBill

java.lang.Object
- test2.ItemizedBill

```
public class ItemizedBill
extends Object
```
A bill that includes an itemized list of purchased items, the date of purchase, and the total price of the bill. The itemized bill and its list form a composition. The itemized bill and its date form a composition. The total price of the bill is guaranteed to be equal to the sum of the prices of the items in the bill.

Field Summary

Fields
Modifier and Type	Field and Description
`private Date`	`date` The date of purchase of this bill.
`private List<Item>`	`items` The list of items for this bill.
`private int`	`total` The total price of this bill.

Constructor Summary

Constructors
Constructor and Description
`ItemizedBill()` Initialize this bill so that it has the current date, a total price of zero, and an empty list of items.
`ItemizedBill(Date date, List<Item> items)` Initialize this bill from a list of purchased items.
`ItemizedBill(ItemizedBill other)` Initialize this bill by copying another bill.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addItem(Item item)` Add an item to the list of items purchased for this bill.
`Date`	`getDate()` Returns a new date equal to the date of this bill.
`List<Item>`	`getItems()` Returns the list of items purchased for this bill.
`Item`	`getMostExpensiveItem()` Returns a copy of the most expensive item in this bill.
`private static Item`	`getMostExpensiveItem(List<Item> t)` Recursively searches the list `t` for the most expensive item.
`int`	`getTotal()` Returns the total price of this bill.
`void`	`removeItem(Item item)` Removes the specified item from the list and updates the total price of the bill.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - date
```
private Date date
```
    The date of purchase of this bill.
  - total
```
private int total
```
    The total price of this bill.
  - items
```
private List<Item> items
```
    The list of items for this bill.
- Constructor Detail
  - ItemizedBill
```
public ItemizedBill()
```
    Initialize this bill so that it has the current date, a total price of zero, and an empty list of items.
  - ItemizedBill
```
public ItemizedBill(Date date,
                    List<Item> items)
```
    Initialize this bill from a list of purchased items. The total price of the bill is computed as the sum of the prices of the purchased items. The date of purchase is equal to the specified date.
    
    Parameters:
    
    date - the date for this bill
    
    items - a list of purchased items
  - ItemizedBill
```
public ItemizedBill(ItemizedBill other)
```
    Initialize this bill by copying another bill. The total price of the bill, the date of purchase, and the list of items purchased are all copied from the other bill.
    
    Parameters:
    
    other - the bill to copy
- Method Detail
  - getItems
```
public List<Item> getItems()
```
    Returns the list of items purchased for this bill. The returned list cannot be used to modify this bill nor the items in this bill.
    
    Returns:
    
    the list of items purchased for this bill
  - addItem
```
public void addItem(Item item)
```
    Add an item to the list of items purchased for this bill. Modifying the item after adding it to the bill does not affect the bill. The total price of the bill is updated to include the price of the added item.
    
    Parameters:
    
    item - add an item to the list of items purchased for this bill
  - removeItem
```
public void removeItem(Item item)
```
    Removes the specified item from the list and updates the total price of the bill. Only one item is removed from the bill if there are duplicate items equal to the specified item.
    
    Parameters:
    
    item - the item to remove from this bill
    
    Throws:
    
    NoSuchElementException - if this bill does not have the specified item
  - getMostExpensiveItem
```
public Item getMostExpensiveItem()
```
    Returns a copy of the most expensive item in this bill. If there is more than one item that has the highest price then a copy of any one of those items will be returned.
    
    Returns:
    
    a copy of the most expensive item in this bill
    
    Throws:
    
    IllegalArgumentException - if this bill has no items
  - getMostExpensiveItem
```
private static Item getMostExpensiveItem(List<Item> t)
```
    Recursively searches the list t for the most expensive item. Returns a copy of the most expensive item in t. If there is more than one item that has the highest price then a copy of any one of those items will be returned.
    
    Parameters:
    
    t - a non-empty list of items
    
    Returns:
    
    a copy of the most expensive item in t
  - getDate
```
public Date getDate()
```
    Returns a new date equal to the date of this bill.
    
    Returns:
    
    a new date equal to the date of this bill
  - getTotal
```
public int getTotal()
```
    Returns the total price of this bill.
    
    Returns:
    
    the total price of this bill

Class ItemizedBill

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

date

total

items

Constructor Detail

ItemizedBill

ItemizedBill

ItemizedBill

Method Detail

getItems

addItem

removeItem

getMostExpensiveItem

getMostExpensiveItem

getDate

getTotal