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  • INTERVIEW QUESTIONS J2EE DETAILS
    Question :
    What is meant by polymorphism in java?How can we achieve polymorphism?Explain with an example.
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    Category J2EE Interview Questions
    Rating (0.3) By 2137 users
    Added on 8/17/2007 1:36:40 PM
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    Answers:

    Any thing that exist in more than one form is known as the polymorphism.

    Example of ploymorphism.
    1. Abstract class(Because, In the abstract super class its define some general information, In the subclass it must be override. It it's many form.(It supports single Inheritance))

    2. Interface( same as above but supporting multiple inheritance )

    3. Method overloading( In the class having a method is same return type but different signature )



    Posted by: sivachandran    

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    Ex:Consider Birds like crow, parrot, peacock etc.. all r different but coming under a common name called birds likewise polymorphism is nothing but one in many form



    Posted by: Madhan    

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    Q:what is difference between string, stringbuffer and stringbuilder?



    Posted by: veeraiah    

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    Example of polymorphism.
    1. Method overloading
    2. Method overriding(Dynamic dispatchment method)
    3. Constructor overloading



    Posted by: Pinakin    

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    polymorphism means existence of more than one form.
    we can achieve polymorphism in run time as well as compile time.

    overloading is the way to achieve polymorphism at compile time.

    using overriding we can achieve polymorphism in run time.



    Posted by: Athira.V    

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