Tulsa .NET User GroupINTRO TO OBJECT ORIENTED PROGRAMMING

DisplayAboutMe(host);>Sean Whitesell

President of Tulsa .NET User Group

Sr. Developer at OpenLink Financial

seanw122@gmail.com @seanw122

Special thanks to…

What is OOP?•Object Oriented Programming•Creation of Classes and Interfaces•Polymorphism

But first, a challenge• POKER HANDS

• Import file

• Each line is cards for both players

• Each line is a round

• Determine winner of each round using poker rules for comparing hands.

• Determine how many times player 1 wins

Player 1 Player 2

Round 1 2C AD JH TC 5S 2S 4H JH 3D 2D

Round 2 6H 7D 8H 9C TS 8D 3S 5D 5C AH

Round 3 4H AS JS QS QC 8C 8H 3S TH 9D

Poker Challenge

•projecteuler.net/problem=54

•Test project file on that page

• Judging by me supplying a new file to your code

• I’ll know how many times player 1 should win

• Judged by correct answer, speed, then code.

•Submit executable and source code.

Example from site

Hand   Player 1   Player 2   Winner

1   5H 5C 6S 7S KDPair of Fives   2C 3S 8S 8D TD

Pair of Eights   Player 2

2  5D 8C 9S JS AC

Highest card Ace  2C 5C 7D 8S QH

Highest card Queen

 Player 1

3  2D 9C AS AH AC

Three Aces  3D 6D 7D TD QD

Flush with Diamonds

 Player 2

4

 

4D 6S 9H QH QCPair of QueensHighest card

Nine

 3D 6D 7H QD QSPair of Queens

Highest card Seven 

Player 1

5 

2H 2D 4C 4D 4SFull House

With Three Fours 

3C 3D 3S 9S 9DFull House

with Three Threes 

Player 1

Rules for Comparing Hands

High Card: Highest value card.

One Pair: Two cards of the same value.

Two Pairs: Two different pairs.

Three of a Kind: Three cards of the same value.

Straight: All cards are consecutive values.

Flush: All cards of the same suit.

Full House: Three of a kind and a pair.

Four of a Kind: Four cards of the same value.

Straight Flush: All cards are consecutive values of same suit.

Royal Flush: Ten, Jack, Queen, King, Ace, in same suit.

Object

Oriented

Programming

And you

Object

Properties

Dog Cat

Lion Horse

Animal

Houses

Villa

Contacts

Vendors

House

Building “Is A”

Inheritance

House

Room

Composition“Has A”

Room cannot exist without a house

House

Occupant

Aggregation“Has A / An”

The two objects can exist independently.

Public void SolveChallenge(){

var foo = File.OpenText(“C:\\temp\\poker.txt”;

foreach ( var line in foo){

blah blah}

compare each card….

is Royal Flush

is Straight Flush

is Four of a Kind

is Straight

is Three of a Kind

……}

Don't Do

This!

Main Class

Card

Player Hand

Winner

http://faculty.orangecoastcollege.edu/sgilbert/book/03-4-ObjectOrientedConcepts-B/index.html

Polymorphism allows objects to

behave differently

Ship ( IShipMethod)

IShipMethod

USPS

UPS

FedEx

Pay( IPaymentMethod) IPaymentMethod

Visa

Mastercard

PayPal