What is an efficient way to implement a singleton pattern in Java?

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Jul 6, 2018 in Java by sophia
• 1,400 points
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1 answer to this question.

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Use an enum:

public enum Foo 
{
    INSTANCE;
}

The Right Way to Implement a Serializable Singleton

public enum Elvis {
    INSTANCE;
    private final String[] favoriteSongs =
        { "Hound Dog", "Heartbreak Hotel" };
    public void printFavorites() {
        System.out.println(Arrays.toString(favoriteSongs));
    }
}
answered Jul 6, 2018 by Akrati
• 3,150 points

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