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Thread: Identify the problem within this snippet of Java/C# code implementing Singleton Desig

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    Angry Identify the problem within this snippet of Java/C# code implementing Singleton Desig

    Q: Identify the problem within this snippet of Java/C# code implementing Singleton Design Pattern. (This is not a trick question, there is a potential real problem in using this code)
    class Singleton
    {
    public static Singleton Instance()
    {
    if (_instance == null){
    _instance = new Singleton();
    return _instance;
    }
    }
    protected Singleton() {}
    private static Singleton _instance = null;
    }


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    Super Moderator helloworld922's Avatar
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    Default Re: Identify the problem within this snippet of Java/C# code implementing Singleton D

    Do you know what the problem is and are just asking it as a challenge to others, or do you need help figuring out what the issue is?

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    Default Re: Identify the problem within this snippet of Java/C# code implementing Singleton D

    i just need a help desperately...
    I have too submit an answer for this but there is no way i am seeing to solve this question......
    plz plz help me out plz

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    Super Moderator Norm's Avatar
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    Default Re: Identify the problem within this snippet of Java/C# code implementing Singleton D

    Can you explain what the problem is?
    Are there error messages?
    Does the code not work as expected?

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    Super Moderator helloworld922's Avatar
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    Default Re: Identify the problem within this snippet of Java/C# code implementing Singleton D

    Hint: Consider what would happen if multiple threads tried to call Instance() at the same time and _instance = null.

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    Administrator copeg's Avatar
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    Default Re: Identify the problem within this snippet of Java/C# code implementing Singleton D

    i just need a help desperately...
    I have too submit an answer for this but there is no way i am seeing to solve this question......
    How I interpret this statement: I have to turn in a homework assignment and can't figure out the answer to this question - please do so for me. Not going to happen. Of course, maybe I am misinterpreting your problem, in which case you should restate it.

    That being said, along with helloworld's hint, here's another: inheritance.

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