H-SC COMS 262 - Lecture 15 - Array Lists (33 pages)

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Lecture 15 - Array Lists



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Lecture 15 - Array Lists

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Pages:
33
School:
Hampden-Sydney College
Course:
Coms 262 - Computer Science II

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Array Lists Robb T Koether List Implementations Array Lists Array Lists Lecture 15 Section 6 2 Circular Array Lists Assignment Robb T Koether Hampden Sydney College Thu Feb 19 2009 Outline Array Lists Robb T Koether List Implementations 1 List Implementations 2 Array Lists 3 Circular Array Lists 4 Assignment Array Lists Circular Array Lists Assignment List Implementation Array Lists Robb T Koether List Implementations Array Lists Circular Array Lists Assignment We will implement lists in a number of ways As an array Fixed head Circular As a linked list Singly linked Doubly linked Circularly linked Recursively linked The ArrayList Class Array Lists Robb T Koether List Implementations Definition Array List Array Lists An array list is an implementation of the List ADT that uses an array to store the list elements Circular Array Lists Assignment The ArrayList class is very similar to the Vectr class The difference is that the size is adjustable after the list has been constructed Data Members Array Lists Robb T Koether List Implementations Array Lists Circular Array Lists Assignment ArrayList Data Members int mSize The number of elements in the list int capacity The number of array positions allocated T element A pointer to the first array element The List Elements Array Lists Robb T Koether List Implementations Array Lists Circular Array Lists Assignment The list elements a0 amSize 1 are stored in array positions element 0 through element mSize 1 Validity Requirements Array Lists Robb T Koether List Implementations Array Lists Circular Array Lists Assignment The object is structurally valid provided capacity 0 mSize 0 and mSize capacity If capacity 0 then element NULL If capacity 0 then element NULL The ArrayList Class Array Lists Robb T Koether List Implementations Array Lists Circular Array Lists Assignment The ArrayList Class Download arraylist h Download and run ListTest cpp Inlining Functions Array Lists Robb T Koether List Implementations Array Lists Circular



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