30 lines
652 B
Java
30 lines
652 B
Java
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/**
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* A class implementing the "singleton" design pattern for printing.
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*/
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public class PrintSpooler
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{
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/* The reference to the single PrintSpooler object
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* that will be used to print */
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private static PrintSpooler spooler;
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/**
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* This method returns the singleton to use for printing documents.
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*/
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public static PrintSpooler getSpooler()
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{
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if (spooler == null)
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spooler = new PrintSpooler();
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return spooler;
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}
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/**
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* Print a document
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* @param s the document (string) to print
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*/
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public void printDocument(String s)
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{
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System.out.println(s);
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}
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}
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