Question

In: Computer Science

//LinkNode is a class for storing a single node of a linked list storing integer values....

//LinkNode is a class for storing a single node of a linked list storing integer values. It has two public data fields for the data and the link to

//the next node in the list and has three constructors:

public class LinkNode {

public int data;      

public LinkNode next;

// post: constructs a node with data 0 and null link

public ListNode() {

     this(0, null);

}

// post: constructs a node with given data and null link

public LinkNode (int data) {

     this(data, null);

}

// post: constructs a node with given data and given link

public LinkNode (int data, LinkNode next) {

     this.data = data;

     this.next = next;

}

}

Assume:

LinkNode list = new LinkNode( );

  1. What would the given linked node diagram look like after the given code executes:

a.

           +----+----+    +----+----+

list ----> | 1 | +----> | 2 | / |

           +----+----+    +----+----+

List.next = new LinkNode(9);

Draw your diagram here…

b.

           +----+----+    +----+----+

list ----> | 1 | +----> | 2 | / |

           +----+----+    +----+----+

List.next = new LinkNode(9, list.next);

Draw your diagram here…

c.

           +----+----+    +----+----+    +----+----+

list ----> | 7 | +----> | 8 | +----> | 3 | / |

           +----+----+    +----+----+    +----+----+

List = new LinkNode(5, list.next.next);

Draw your diagram here…

Solutions

Expert Solution

a) Ans:

Here we have list pointing to 1 initally. List.next is changed to a new node with data 9, hence the new linked node diagram would be:



           +----+----+    +----+----+

list ----> | 1 | +----> | 9 | / |

           +----+----+    +----+----+

===================================

b) Ans:

new LinkNode(9, list.next); ==> this will create a node with value 9 and next pointing to node with data 2 of list.

Now List.next is set to above value. Hence new list would be


           +----+----+    +----+----+    +----+----+

list ----> | 1 | +----> | 9 | +----> | 2 | / |

           +----+----+    +----+----+    +----+----+

=================================

c) Ans

List = new LinkNode(5, list.next.next);

A new link node with value 5 is created. The next value is set to node pointing at 3 of the orignal list. Hence new list would be



           +----+----+    +----+----+

list ----> | 5 | +---->   | 3 | / |

           +----+----+    +----+----+

==========

For any query comment.

venereology answered 1 year ago
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