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Q.
In linked list implementation of a queue, front and rear pointers are tracked. Which of these pointers will change during an insertion into EMPTY queue?

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MCQ
1.
Select the function which performs insertion at the front end of the dequeue?

a)

public void function(Object item)
{
 Node temp = new Node(item,null);
 if(isEmpty())
 {
  temp.setNext(trail);
  head.setNext(temp);
 }
 else
 {
  Node cur = head.getNext();
  temp.setNext(cur);
  head.setNext(temp);
 }
 size++;
}

b)

public void function(Object item)
{
 Node temp = new Node(item,null);
 if(isEmpty())
 {
  temp.setNext(trail);
  head.setNext(trail);
 }
 else
 {
  Node cur = head.getNext();
  temp.setNext(cur);
  head.setNext(temp);
 }
 size++;
}

c)

public void function(Object item)
{
 Node temp = new Node(item,null);
 if(isEmpty())
 {
  Node cur = head.getNext();
  temp.setNext(cur);
  head.setNext(temp);
 }
 else
 {
  temp.setNext(trail);
  head.setNext(temp);
 }
 size++;
}

d) None of the mentioned
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MCQ
2.
In a queue, the initial values of front pointer f rare pointer r should be
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MCQ
3.
With what data structure can a priority queue be implemented?
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MCQ
4.
A linear list of elements in which deletion can be done from one end (front) and insertion can take place only at the other end (rear) is known as a ?
forum Discussion
MCQ
5.
Which of the following is a collection of items into which items can be inserted arbitrarity and from which only the smallest item can be removed?
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