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We discussed the add operation for a doubly linked list an showed that the corre

ID: 3679852 • Letter: W

Question

We discussed the add operation for a doubly linked list an showed that the correct order for th reference changes is

newNode.sestBack(location.getBack());

newNode.setLink(location);

location.getBack().setLink(newNode);

location.setBack(newNode);

Describe the ramifications of making the reference changes in a different order as well as describe what each part of the code a - c would do:

a)

location.setBack(newNode);

newNode.setBack(location.getBack());

newNode.setLink(location);

location.getBack().setLink(newNode);

b)

newNode.setBack(location.getBack());

location.getBack().setLink(newNode);

newNode.setLink(location);

location.setBack(newNode);

c)

newNode.setLink(location);

newNode.setBack(location.getBack());

location.getBack().setLink(newNode);

location.setBack(newNode);

Thank you.

Explanation / Answer

As per the instructions in the above segments:

A: In this method, A new node has been created in a location and setback the location and then variable location has been gotten.


B: In this method, the instance variable location and variable has been retrieved and then create a location and new node.


C: In this method, the instance variable location has already been set to the node before which we want to add

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