Abstract Methods: Difference between revisions
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==Abstract Methods== | |||
"What is an abstract method?" | "What is an abstract method?" | ||
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(Side note - Golang only implements "object oriented programming" through interfaces, which are more like functional C structs than Java's everything-is-an-object.) | (Side note - Golang only implements "object oriented programming" through interfaces, which are more like functional C structs than Java's everything-is-an-object.) | ||
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Latest revision as of 05:37, 1 June 2017
Abstract Methods
"What is an abstract method?"
versus,
"Explain what an abstract method is. How it works."
If they don't specify, start with one, then the other. Write a short outline of what you're covering on the board. And have your mental picture in mind.
Give a 2-3 sentence definition, and then elaborate on the whiteboard.
The abstract method is a method definition in a class that is intended to be extended via inheritance, and it imposes restrictions on classes extending this class, to ensure a consistent interface.
This is the idea behind Interfaces: not-quite-classes, classes lite,
Classic example: MakesNoise interface. Babies, and Monster Trucks. Don't want inheritance, you want an interface.
(Side note - Golang only implements "object oriented programming" through interfaces, which are more like functional C structs than Java's everything-is-an-object.)
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Data Structures Part of Computer Science Notes
This is the staging ground for computer science notes as part of the 2017 CS Study Plan.
Classes of data structures: Abstract Data Types Array-based and Link-based memory management: ArrayLists and Linked Lists Algorithmic Analysis of Data Structures: Algorithmic Analysis of Data Structures Advanced data structures: Advanced Data Structures
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Arrays Part of Computer Science Notes
Series on Data Structures Python: Arrays/Python · Arrays/Python/Sizeof · Arrays/Python/AppendCost · Arrays/Python/CaesarCipher · Arrays/Python/CompactArrays · Arrays/Python/DynamicArray Java: Arrays/Java · Arrays/Java/CaesarCipher · Arrays/Java/FisherYates · Arrays/Java/PythonList · Arrays/Java/Repeatedly_Remove Categories: Category:Python Arrays
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Stacks and Queues Part of Computer Science Notes
Series on Data Structures
Stacks and Queues: Python StacksQueues/Python · StacksQueues/Python/ArrayStack · StacksQueues/Python/ArrayQueue · StacksQueues/Python/ArrayDeque StacksQueues/Python/LinkedStack
Stacks and Queues: Java StacksQueues/Java · StacksQueues/Java/ArrayStack · StacksQueues/Java/ArrayQueue · StacksQueues/Java/ArrayQueueFS · StacksQueues/Java/ArrayDeque StacksQueues/Java/LinkedStack · StacksQueues/Java/LinkedQueue · StacksQueues/Java/LinkedDeque
Applications Postfix_Expressions#Stacks · StacksQueues/Subsets · StacksQueues/Subsets/Java
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Priority Queues and Heaps Part of Computer Science Notes
Series on Data Structures
Java: Priority Queues/Java · Priority Queues/ADT · Priority Queues/Sorted · Priority Queues/Unsorted Performance: Priority Queues/Timing and Performance Applications: Maximum Oriented Priority Queue · Priority Queues/Stack
Priority Queues/Heap · Priority Queues/Java · Priority Queues/Comparators
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Linked List Part of Computer Science Notes
Series on Data Structures Java: Linked Lists/Java · Linked Lists/Java/Single · Linked Lists/Java/Double · Linked Lists/Java/Circular Performance: Linked Lists/Java/Timing · Linked Lists/Java/Reverse Python: Linked Lists/Python · Linked Lists/Python/Single
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Trees Part of Computer Science Notes
Series on Data Structures Abstract data type: Trees/ADT Concrete implementations: Trees/LinkedTree · Trees/ArrayTree · SimpleTree
Tree Traversal Preorder traversal: Trees/Preorder Postorder traversal: Trees/Postorder In-Order traversal: Binary Trees/Inorder Breadth-First Search: BFS Breadth-First Traversal: BFT Depth-First Search: DFS Depth-First Traversal: DFT OOP Principles for Traversal: Tree Traversal/OOP · Tree Traversal/Traversal Method Template Tree operations: Trees/Operations Performance · Trees/Removal
Tree Applications Finding Minimum in Log N Time: Tree/LogN Min Search
Abstract data type: Binary Trees/ADT Concrete implementations: Binary Trees/LinkedBinTree · Binary Trees/ArrayBinTree Binary Trees/Cheat Sheet · Binary Trees/OOP · Binary Trees/Implementation Notes
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Search Trees Part of Computer Science Notes
Series on Data Structures
Binary Search Trees · Balanced Search Trees Trees/OOP · Search Trees/OOP · Tree Traversal/OOP · Binary Trees/Inorder
(Note that heaps are also value-sorting trees with minimums at the top. See Template:PriorityQueuesFlag and Priority Queues.)
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Maps and Dictionaries Part of Computer Science Notes
Series on Data Structures
Maps/Dictionaries Maps · Maps/ADT · Maps in Java · Maps/OOP · Maps/Operations and Performance Map implementations: Maps/AbstractMap · Maps/UnsortedArrayMap · Maps/SortedArrayMap Dictionary implementations: Dictionaries/LinkedDict · Dictionaries/ArrayDict
Hashes Hash Maps/OOP · Hash Maps/Operations and Performance Hash Maps/Dynamic Resizing · Hash Maps/Collision Handling with Chaining Hash functions: Hash Functions · Hash Functions/Cyclic Permutation Hash map implementations: Hash Maps/AbstractHashMap · Hash Maps/ChainedHashMap
Skip Lists · Java/ConcurrentSkipList · Java implementations: SkipList
Sets Sets · Sets/ADT · Sets in Java · Sets/OOP · Multisets
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