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  • INTERVIEW QUESTIONS DATA STRUCTURE DETAILS
    Question :
    Why is the isEmpty() member method called?
    Category Data Structure Interview Questions
    Rating (0.4) By 1439 users
    Added on 8/31/2009
    Views 1719
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    Answers:

    The isEmpty() member method is called within the dequeue process to determine if there is an item in the queue to be removed i.e. isEmpty() is called to decide whether the queue has at least one element.This method is called by the dequeue() method before returning the front element.



    isEmpty() checks stack is empty or not.It returns true stack is empty otherwise false.



    Posted by: Rehana    

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    pop() is one of the most important operation performed onto the stack. This operation remove the topmost element from the stack. But for that we must have to check stack is empty or not. If stack is empty & we are going to perform pop() operation at that time it underflows therefore while doing pop() operation we have to check stack is empty or not this work is done by calling isEmpty() method



    Posted by: Jibrail Bagwan    

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