Singleton design pattern traditional implementat Yasser @Jobilize

Author: Yasser Ibrahim

Quiz Permalink:

https://www.jobilize.com/gang-of-four-gof-design-patterns

Question Permalink:

https://www.jobilize.com/singleton-design-pattern-traditional-implementation

Question 47 / 69: Which of the following code snippet represents a Singleton design pattern implementation?

A public class PrintSpooler { public PrintSpooler INSTANCE = new PrintSpooler(); public PrintSpooler
() {} public static PrintSpooler getInstance() { return INSTANCE; } }

B public class PrintSpooler { private PrintSpooler INSTANCE = new PrintSpooler(); private PrintSpooler
() {} public static PrintSpooler getInstance() { return INSTANCE; } }

C public class PrintSpooler { private static final PrintSpooler INSTANCE = new PrintSpooler();
private PrintSpooler () {} public static PrintSpooler getInstance() { return INSTANCE; } }

D public class PrintSpooler { private final PrintSpooler INSTANCE = new PrintSpooler(); private
PrintSpooler () {} public static PrintSpooler getInstance() { return INSTANCE; } }

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if any requirement engineer is gathering requirements from client and after getting he/she Analyze them this process is called

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Noor

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Gang of Four Design Patterns

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