List Operations and Implementations
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Questions and Answers

How is the position of the current element indicated in the list display notation?

  • With a forward slash
  • With a vertical bar (correct)
  • With a backslash
  • With a comma
  • What happens to the list configuration after calling insert with value 10?

  • Value 10 is inserted after the current element (correct)
  • Elements are removed
  • The list is cleared
  • Value 10 is inserted before the current element
  • Which method returns a reference to the current element in the list?

  • insert
  • getValue (correct)
  • clear
  • remove
  • Why is the clear method included in the list member functions?

    <p>For convenience</p> Signup and view all the answers

    In concrete list implementations, what is used to enforce preconditions about element values?

    <p>Assertions</p> Signup and view all the answers

    What is the term used to describe a list that contains no elements?

    <p>Empty list</p> Signup and view all the answers

    In the context of a list, what is referred to as the 'head'?

    <p>The beginning of the list</p> Signup and view all the answers

    What does the length of a list represent?

    <p>Total elements in the list</p> Signup and view all the answers

    In which type of list are the elements positioned in ascending order of value?

    <p>Sorted list</p> Signup and view all the answers

    What is the notation used to denote the first position on a list, according to Java array indexing?

    <p>0</p> Signup and view all the answers

    What is the key design decision embodied in the list ADT described in the text?

    <p>Support for a current position concept</p> Signup and view all the answers

    Why does the list ADT support the concept of a current position?

    <p>To allow access to any position in the list</p> Signup and view all the answers

    What is the purpose of the member function moveToStart in the list ADT?

    <p>To set the current position as the first element on the list</p> Signup and view all the answers

    Why are there n + 1 possible 'current positions' in a list with n elements?

    <p>To allow insertion at any position including front and back of the list</p> Signup and view all the answers

    In the context of the list ADT, what is the significance of supporting a current position?

    <p>It facilitates easy access and manipulation of elements at a specific point in the list</p> Signup and view all the answers

    What should a program designer consider first before selecting a list implementation?

    <p>The operations the implementation must support</p> Signup and view all the answers

    In the context of lists, what does the subscript indicate?

    <p>The element's position within the list</p> Signup and view all the answers

    What is a key feature that a list should have according to common intuition?

    <p>Ability to grow and shrink in size</p> Signup and view all the answers

    Which aspect is NOT necessary for a list implementation?

    <p>Ability to store only integers in the list</p> Signup and view all the answers

    How is the list ADT made more flexible in Java?

    <p>By defining the ADT as a Java generic</p> Signup and view all the answers

    What is a simple and effective approach to store a few things in a program?

    <p>Putting them in a list</p> Signup and view all the answers

    When do more sophisticated data structures usually become necessary?

    <p>When dealing with large amounts of data</p> Signup and view all the answers

    Which data structure is appropriate for processing objects in the order that they arrived?

    <p>Queue</p> Signup and view all the answers

    Which chapter will discuss how to deal with large amounts of data?

    <p>Chapter 8</p> Signup and view all the answers

    What is the goal of separating a logical representation from a physical implementation for a data structure?

    <p>To allow flexibility in changing the implementation while preserving logical properties</p> Signup and view all the answers

    What does the push operation do in a stack?

    <p>Inserts a new element at the top of the stack</p> Signup and view all the answers

    How does the push operation affect the size of the underlying array when using arrays to implement stacks?

    <p>Increases the size by one unit</p> Signup and view all the answers

    Which operation would you use to remove an element from the top of the stack?

    <p>Pop</p> Signup and view all the answers

    What does the pop operation do in a stack?

    <p>Removes an element from the top of the stack</p> Signup and view all the answers

    Which operation in a stack allows you to view the top element without removing it?

    <p>Peek</p> Signup and view all the answers

    What information does the peek operation provide in a stack?

    <p>The top element without removal</p> Signup and view all the answers

    When implementing a push operation using arrays, where is the new element added?

    <p>End of the array</p> Signup and view all the answers

    What does the size estimation in a stack refer to?

    <h1>of elements currently in the stack</h1> Signup and view all the answers

    If a push operation results in reaching MAX_SIZE in an array implementation, what message will be displayed?

    <p>Stack Overflow</p> Signup and view all the answers

    What is prevented by incrementing stackSize before assigning a value in a push operation?

    <p>Negative indexing errors</p> Signup and view all the answers

    What is the purpose of the pop operation in a stack?

    <p>Removing an element from the top of the stack</p> Signup and view all the answers

    Which element becomes the first to be removed in a stack when using an array-based implementation?

    <p>The last element inserted</p> Signup and view all the answers

    What is the primary purpose of the peek operation in a stack?

    <p>Viewing the topmost element without removing it</p> Signup and view all the answers

    How is the size of a stack based on arrays determined?

    <p>By calculating the total length of the array</p> Signup and view all the answers

    In a stack implementation, what does the 'Stack Size' component represent?

    <p>The current number of elements in the stack</p> Signup and view all the answers

    What happens when trying to pop an element from an empty stack?

    <p>An exception is raised</p> Signup and view all the answers

    In a stack representation, why is keeping track of 'Container Array' crucial?

    <p>To preserve LIFO order</p> Signup and view all the answers

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