设计模式是软件工程的核心思想

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				D:\Projects\PatternJava\Programs\Singleton\singleSpooler\singleSpooler.java
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				D:\Projects\PatternJava\Programs\Singleton\staticSpool.java
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				D:\Projects\PatternJava\Programs\Singleton\SingletonException.java
				D:\Projects\PatternJava\Programs\Singleton\singlePrinter.java
				D:\Projects\PatternJava\Programs\Singleton\instanceSpooler.java
				D:\Projects\PatternJava\Programs\Singleton\Spooler.java
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				D:\Projects\PatternJava\Programs\Singleton\singleSpooler\singleSpooler.java
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				haw0flb 790 / H1-A06 IBM 4317,1,1,7,