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Data Abstraction and Problem Solving with JAVA:

Data Abstraction and Problem Solving with JAVA:

Walls and Mirrors Walls and Mirrors

Carrano / Prichard Carrano / Prichard

Linked Lists

Linked Lists

(2)

a) A linked list of integers; b) insertion; c) deletion

(3)

A reference to an Integer object

(4)

a) Declaring reference variables; b) allocating an object; c) allocating another

object, with the dereferenced object marked for garbage collection

(5)

e) allocating an object; f) assigning null to a reference variable; g) assigning a

reference with a null value

(6)

The value of a parameter does not affect the argument’s value

(7)

A node

(8)

The result of linking two instances of IntegerNode

(9)

Using the Node constructor to initialize a data field and a link value

(10)

A head reference to a linked list

(11)

A lost node

(12)

The effect of the assignment curr = curr.getNext( )

(13)

Deleting a node from a linked list

(14)

Deleting the first node

(15)

Inserting a new node into a linked list

(16)

Inserting at the beginning of a linked list

(17)

Inserting at the end of a linked list

(18)

When prev references the last node and curr is null, insertion will be at

the end of the linked list

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When prev is null and curr references the first node, insertion or

deletion will be at the beginning of the linked list

(20)

A reference-based implementation of the ADT list

(21)

A head reference as an argument

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a) A sorted linked list; b) the assignment made for insertion at the beginning of

the list

(23)

a) The initial call insert Recursive(head, newItem);

b) the first recursive call

(24)

c) the second recursive call inserts at the beginning of the list that headNode

references

(25)

A linked list with head and tail references

(26)

A circular linked list

(27)

A circular linked list with an external reference to the last node

(28)

A dummy head node

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a) A dummy head node with global information; b) a head record with global

information

(30)

A doubly linked list

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a) A circular doubly linked list with a dummy head node; b) an empty list with a

dummy head node

(32)

Reference changes for deletion

(33)

Reference changes for insertion

(34)

a) Inventory list node; b) wait list node

(35)

c) orthogonal structure for the inventory

(36)

Linked list for Self-Test Exercise 2, 3, and 7

(37)

Two circular linked lists

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A sparse polynomial

(39)

a) An array-based implementation of the linked list in Figure 4-32; b) after

inserting D in sorted order; c) after deleting B

References

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