?? headerdecorator.java
字號:
package com.javapatterns.decorator.printinvoice;
public class HeaderDecorator extends OrderDecorator
{
public HeaderDecorator(Order anOrder)
{
super(anOrder);
}
public void print()
{
this.printHeader();
super.order.print();
}
private void printHeader()
{
System.out.println("\t***\tI N V O I C E\t***\nXYZ Incorporated\nDate of Sale: "
+ order.getSalesDate());
System.out.println("========================================================");
System.out.println("Item\t\tUnits\tUnit Price\tSubtotal");
}
}
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