?? order.java
字號(hào):
package com.javapatterns.decorator.printinvoice;
import java.util.Date;
import java.util.Vector;
import java.text.NumberFormat;
abstract public class Order
{
/**
* @link aggregation
* @directed
* @supplierCardinality 0..*
* @clientCardinality 1
*/
private OrderLine lnkOrderLine;
protected String customerName;
protected Date salesDate;
protected Vector items = new Vector(10);
public void print()
{
for (int i = 0 ; i < items.size() ; i++)
{
OrderLine item = (OrderLine) items.get(i);
item.printLine();
}
}
public String getCustomerName()
{
return customerName;
}
public void setCustomerName(String customerName)
{
this.customerName = customerName;
}
public Date getSalesDate()
{
return salesDate;
}
public void setSalesDate(Date salesDate)
{
this.salesDate = salesDate;
}
public void addItem(OrderLine item)
{
items.add(item);
}
public void remoteItem(OrderLine item)
{
items.remove(item);
}
public double getGrandTotal()
{
double amnt = 0.0D;
for (int i = 0 ; i < items.size() ; i++)
{
OrderLine item = (OrderLine) items.get(i);
amnt += item.getSubtotal();
}
return amnt;
}
protected String formatCurrency(double amnt)
{
return NumberFormat.getCurrencyInstance().format(amnt);
}
}
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