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CSC 1351 Answer-Integrated Exam 2024/2025
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Three examples of ADTs Answer: Arrays, Array lists, Strings Nodes consist of two items, what are they? Answer: data, next In order to delete a node you must have what? Answer: current position and previous position What is included in a linked list node? I) a ref...

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  • August 30, 2024
  • 18
  • 2024/2025
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CSC 1351 Answer-Integrated Exam
2024/2025

Three examples of ADTs Answer: Arrays, Array lists, Strings



Nodes consist of two items, what are they? Answer: data, next



In order to delete a node you must have what? Answer: current position and previous position



What is included in a linked list node?



I) a reference to the next node

II) an array reference

III) a data element Answer: I and III



insert the missing code in the following code fragment. The fragment is intended to add a new node to
the head of a linked list:



public class LinkedList

{

....

public void addFirst(Object element)

{

Node newNode = new Node();

newNode.data = element;

,---------

---------

}

....

}



A. first = newNode;

newNode.next = first;



B. newNode.next = first;

first = newNode;



C. first = newNode.next;

newNode.next = first;



D. first = newNode.next;

newNode = first; Answer: B. newNode.next = first;

first = newNode;



Insert the missing code in the following code fragment. This fragment is intended to

remove a node from the head of a linked list:

public class LinkedList

{

...

public Object removeFirst()

, {

if (first == null)

{

throw new

NoSuchElementException();

}

Object element = first.data;

________________

________________

}

...

}

A. first = first.next;

return element;



B. first.next = first;

return element;



C. first = element.next;

return element;



D. first = element.next;

return null; Answer: A. first = first.next;

return element;

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