Keywords: Singleton UML class diagram.svg http //validator w3 org/check uri http 3A 2F 2Fupload wikimedia org 2Fwikipedia 2Fcommons 2Ff 2Ffb 2FSingleton_UML_class_diagram svg This source is valid SVG 1 1 UML class diagram for Singleton software design pattern Singleton パターンのクラス図 My own work written with text editor 2006-12-23T04 00+09 00 Trashtoy Singleton pattern |