Question1Max. score: 1.00In data structures, which of the following methods is used to return the value of the top of a stack without removing any objects?
Question
Question 1
Max. score: 1.00
In data structures, which of the following methods is used to return the value of the top of a stack without removing any objects?
Solution
In data structures, the method used to return the value of the top of a stack without removing any objects is generally referred to as the "peek" method (or top
in some implementations).
Explanation:
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Stack Definition: A stack is a linear data structure that follows the Last In First Out (LIFO) principle. This means that the last element added to the stack is the first one to be removed.
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Peek Method: The peek operation allows you to view the element at the top of the stack without modifying the stack itself. This is useful when you want to know what the last added element is, but you do not want to remove it, perhaps because you might need it for future operations.
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Implementation: In programming, the peek method typically accesses the top element directly. For example, in many programming languages, it might look something like:
top_value = stack.peek()
or
top_value = stack.top()
Hence, in the context of the question, the correct answer is the "peek" method.
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