Class AStringQueue

Unit

classwork

Declaration

type AStringQueue = class(AStringList)

Description

This class alters the behavior of AStringList so that it can be used as a queue (first in, first out). It does this by modifying the behavior of AStringList.pop so that it returns the first string in the list, instead of the last. Of course, like its parent, instances of AStringQueue can also be accessed as indexed arrays, if desired.

Hierarchy

• TObject
• AnObject
• APrintingObject
• ALinkedList
• AStringList
• AStringQueue

Overview

Methods

function pop: string; override;

Description

Methods

	function pop: string; override;
Remove the first string from the list and return it to the caller. This method overrides the behavior inherited from AStringList.pop so that it returns the first string in the list, instead of the last. If there are no items in the list, this method returns an empty string.