python - intermediate - 7 - OOP



Classinstance / obje metot
Liste[1,2,3,4]listA.append
Personname, surname, birthday

Cok veri oldugunda class kullanmak daha avantajli oluyor

Aciklamalar

class Person: # buyuk harf ile baslamali
    #bos olmamali, bos birakacaksak icine `pass` yazmaliyiz
    # ya attributes ya da methods kisminda birsey olmali
   
    #attributes
        #constructor icinde tanimlanir
        #constructor tanimlamak icin metot tanimlamasi yapilir
        # attributes 2 cesit:

         #1 / class attr
         #2 / object attr
            #bunu def ile baslayarak yapiyoruz:
        def __init__(self, name, year): #self: parametre =
            #self class`tan turetilmis herhangi bir objeyi temsil eder
            #self ya p1 ya da p2`yi temsil eder
            #obje userinden bir deger aktarmak istedigimizde self`i kullaniriz
            # self`in uzerine hangi attribute`lari eklemek istiyorsam,
            #self`ten sonra vitguller ile parametre olarak bunu yapiyorum
   
    #methods
   
    #object, instance
    p1 = Person() # kucuk harfle baslar - Person Class`indaki metot ve attrib. lara ulasabilirim
    #p1`in adresi var artik, her objenin adresi farklidir
    p2 = person()

Nasil yapilir

class Person:
   
    #attributes
        #constructor (yapici metot)
        def __init__(self, name, year):
            # parantez icindeki parametreler hakkinda: 3 parametre var
            # self icin parametre gonderilmez p1 ve p2 onu parametresidir,
            # yani self icin deger verilmez
            # diger ikisi: name ve year icin parametre gonderilmeli

            # program run ettiginde, init metodu her obje (p1,p2) icin cagrilir

        # attributes 2 cesittir:

         #1 / class attr
         #2 / object attr
         self.name = name
         self.year = year
         print('init metodu calisti')
   
    #methods
   
    #object, instance
p1 = Person('ali', 1990)
p2 = Person('yagmur', 1995)
    #2 adet parametre gonderdik

#
init metodu calisti #p1 icin calisti init metodu calisti #p2 icin calisti

deger yazdirmak

class Person:
   
    #attributes
        #constructor (yapici metot)
        def __init__(self, name, year):

        # attributes 2 cesit:

         #1 / class attr
         #2 / object attr
         self.name = name
         self.year = year
         print('init metodu calisti')
   
    #methods
   
    #object, instance
p1 = Person('ali', 1990)
p2 = Person('yagmur', 1995)

print(f'name: {p1.name} - year: {p1.year}')
print(f'name: {p2.name} - year: {p2.year}')

#
init metodu calisti init metodu calisti name: ali - year: 1990 name: yagmur - year: 1995

Class attributes`lar

class Person:
    #attributes    
         #1 / class attr - class icinde genel
        address='no information'
            # bilgiyi girmek yerine cl att olarak tanimladik
        #constructor (yapici metot)
        def __init__(self, name, year):

         #2 / object attr - objelere ozeldir
            self.name = name
            self.year = year
            print('init metodu calisti')
   
    #methods
   
    #object, instance
p1 = Person('ali', 1990)
p2 = Person('yagmur', 1995)

# accessing object attributes
print(f'name: {p1.name} - year: {p1.year} - adress: {p1.address}')
print(f'name: {p2.name} - year: {p2.year} - adress: {p2.address}')

#
name: ali - year: 1990 - adress: no information name: yagmur - year: 1995 - adress: no information

Attribute update`ini yapmak

class Person:
    #attributes    
         #1 / class attr
        address='no information'
        #constructor (yapici metot)
        def __init__(self, name, year):

         #2 / object attr
            self.name = name
            self.year = year
            print('init metodu calisti')
   
    #methods
   
    #object, instance
p1 = Person('ali', 1990)
p2 = Person('yagmur', 1995)

#updating
p1.name= 'ahmeet'
p1.address='kocaeli'

#access obj attributes
print(f'name: {p1.name} - year: {p1.year} - adress: {p1.address}')
print(f'name: {p2.name} - year: {p2.year} - adress: {p2.address}')

#
name: ahmeet - year: 1990 - adress: kocaeli name: yagmur - year: 1995 - adress: no information

Metod tanimlamak

class Person:
    #attributes    
         #1 / class attr
        address='no information'
        #constructor (yapici metot)
        def __init__(self, name, year):

         #2 / object attr
            self.name = name
            self.year = year
   
    #instance methods
        def intro(self): #self cunku instance metodu bu
              print('Hello There. I am '+self.name)
   
    #object, instance
p1 = Person('ali', 1990)
p2 = Person('yagmur', 1995)

#access obj attributes
print(f'name: {p1.name} - year: {p1.year} - adress: {p1.address}')
print(f'name: {p2.name} - year: {p2.year} - adress: {p2.address}')

#access obj methods
p1.intro()
p2.intro()

#
name: ali - year: 1990 - adress: no information name: yagmur - year: 1995 - adress: no information Hello There. I am ali Hello There. I am yagmur

metod - ornek 2 - 
class Person:
    #attributes    
         #1 / class attr
        address='no information'
            # bilgiyi girmek yerine cl att olarak tanimladik
        #constructor (yapici metot)
        def __init__(self, name, year):

         #2 / object attr
            self.name = name
            self.year = year
   
    #instance methods
        def intro(self): #self cunku instance metodu bu
              print('Hello There. I am '+self.name)

        def calculateAge(self): #her seferinde self parametresini almasi lazim
              return 2019-self.year

   
    #object, instance
p1 = Person('ali', 1990)
p2 = Person('yagmur', 1995)

#access obj attributes
print(f'name: {p1.name} - year: {p1.year} - adress: {p1.address}')
print(f'name: {p2.name} - year: {p2.year} - adress: {p2.address}')

p1.intro()
print(f'yasim: {p1.calculateAge()}')

p2.intro()
print(f'yasim: {p2.calculateAge()}')

#
Hello There. I am ali yasim: 29 Hello There. I am yagmur yasim: 24

- yeni ornek - 
class CircleIsMe:
    #att
    pi=3.14
   
    def __init__(self,CirYaricap=1): #default 1
        self.xCirYaricap = CirYaricap

    # Methods
    def cevre_hsp(self):
        return 2*self.pi*self.xCirYaricap
   
    def alan_hsp(self):
        return self.pi*(self.xCirYaricap**2)
   
c1 = CircleIsMe() #default 1 olacak - deger yok
c2 = CircleIsMe(5)

print(f'c1: alan = {c1.alan_hsp()} cevre = {c1.cevre_hsp()}')
print(f'c2: alan = {c2.alan_hsp()} cevre = {c2.cevre_hsp()}')

#
c1: alan = 3.14 cevre = 6.28 c2: alan = 78.5 cevre = 31.400000000000002

Inheritence

Person class`indaki bilgiler (name, lastname, age), temel class olacak ve,
Student class`inda kullanilmasi: Student(Person)
veya Teacher class`inda kullanilmasi: Teacher(Person)

class Person():
    def __init__(self):
        print('Person created')

class Student(Person):
    def __init__(self):
        Person.__init__(self) # Student`i Person`a baglar
        print('Student created')

p1=Person()
s1=Student()

#
Person created Person created (Student create ettigimiz ve People`a bagliligindan bu ikinci kere yazar) Student created

- uygulama - 

class Person():
    def __init__(self, fname, lname):
        self.firstName = fname
        self.lastName = lname

class Student(Person):
    def __init__(self, fname, lname):
        Person.__init__(self, fname, lname)

p1=Person('Ali','Yilmaz')
s1=Student('Cinar','Turan')

print(p1.firstName+" "+p1.lastName)
print(s1.firstName+" "+s1.lastName)

#
Ali Yilmaz Cinar Turan

-uygulama- 

Student`da daha detay
class Person():
    def __init__(self, fname, lname):
        self.firstName = fname
        self.lastName = lname
        #print('Person created')

class Student(Person):
    def __init__(self, fname, lname, StNumber):
        Person.__init__(self, fname, lname)
        self.StudentNumber = StNumber
        #print('Student created')

p1=Person('Ali','Yilmaz')
s1=Student('Cinar','Turan',1256)

print(p1.firstName+" "+p1.lastName)
print(f'{s1.firstName} {s1.lastName} {s1.StudentNumber}')

#
Ali Yilmaz Cinar Turan 1256

- child`in inherit etmesi:

class Person():
    def __init__(self, fname, lname):
        self.firstName = fname
        self.lastName = lname
        #print('Person created')

    def who_am_i(self):
        print('I am a person')

class Student(Person):
    def __init__(self, fname, lname, StNumber):
        Person.__init__(self, fname, lname)
        self.StudentNumber = StNumber

p1=Person('Ali','Yilmaz')
s1=Student('Cinar','Turan',1256)

print(p1.firstName+" "+p1.lastName)
print(f'{s1.firstName} {s1.lastName} {s1.StudentNumber}')

p1.who_am_i()
s1.who_am_i()
# not edilecek husus, Person elemaninda var ama Student
# elemaninda olmasa da student uzerinden cagirabiliyoruz
# override edilebilir - sonraki ornek gosteriyor

#
Ali Yilmaz Cinar Turan 1256 I am a person I am a person # Studen inherit ettigi icin bunu yaziyor

- child override etmesi

class Person():
    def __init__(self, fname, lname):
        self.firstName = fname
        self.lastName = lname
 
    def who_am_i(self):
        print('I am a person')

class Student(Person):
    def __init__(self, fname, lname, StNumber):
        Person.__init__(self, fname, lname)
        self.StudentNumber = StNumber

    def who_am_i(self):
        print('I am a student')
       
p1=Person('Ali','Yilmaz')
s1=Student('Cinar','Turan',1256)

print(p1.firstName+" "+p1.lastName)
print(f'{s1.firstName} {s1.lastName} {s1.StudentNumber}')

p1.who_am_i()
s1.who_am_i()

#
Ali Yilmaz Cinar Turan 1256 I am a person I am a student # Override etti

son uygulama

class Person():
    def __init__(self, fname, lname):
        self.firstName = fname
        self.lastName = lname
        #print('Person created')

    def who_am_i(self):
        print('I am a person')

class Student(Person):
    def __init__(self, fname, lname, StNumber):
        Person.__init__(self, fname, lname)
        self.StudentNumber = StNumber

    def who_am_i(self):
        print('I am a Student')

class Teacher(Person):
    def __init__(self,fname,lname,branch):
        super().__init__(fname, lname) #bu "Person.__init__(self," ile ayni sonucu verir
        self.ThBranch=branch

    def who_am_i(self):
        print(f'I am a {self.ThBranch} teacher')

p1=Person('Ali','Yilmaz')
s1=Student('Cinar','Turan',1256)
t1=Teacher('Serkan','Yilmaz',"Math")

t1.who_am_i()

print(p1.firstName+" "+p1.lastName)
print(f'{s1.firstName} {s1.lastName} {s1.StudentNumber}')

p1.who_am_i()
s1.who_am_i()
# not edilecek husus, Person elemaninda var ama Student
# elemaninda olmasa da student uzerinden cagirabiliyoruz

#
I am a Math teacher Ali Yilmaz Cinar Turan 1256 I am a person I am a Student

- quizz app - 
#question
class Question:
    def __init__(self,text,choices,answer):
        self.Qtext = text
        self.Qchoices=choices
        self.Qanswer=answer

    def checkanswer(self,answer):
        return self.Qanswer==answer

#quizz

class Quizz:
    def __init__(self,questions):
        self.Qquestions=questions
        self.score=0
        self.questionIndex=0

    def getQuestion(self):
        return self.Qquestions[self.questionIndex]
   
    def displayQuestion(self):
        Question = self.getQuestion()
        print(f'Soru {self.questionIndex + 1}: {Question.Qtext}')

        for q in Question.Qchoices:
            print('-'+q)

        answer=input('cevap: ')
        # print(Question.checkanswer(answer))
        self.guess(answer)
        self.loadQuestion()

    def guess(self,answer):
        Question = self.getQuestion()

        if Question.checkanswer(answer):
            self.score+=1
        self.questionIndex+=1

    def loadQuestion(self):
        if len(self.Qquestions)==self.questionIndex:
            self.showScore()
        else:
            self.displayProgress()
            self.displayQuestion()


    def showScore(self):
        print('score: ',self.score)

    def displayProgress(self):
        totalQuestion=len(self.Qquestions)
        questionNumber=self.questionIndex+1
       
        if questionNumber==totalQuestion:
            print('Quiz bitti.')
        else:
            print(f'Question {questionNumber} of {totalQuestion}'.center(75,"-"))  

q1=Question('best prog lang?',['c#','pyt','js','java'],'pyt')
q2=Question('en populer prog lang?',['c#','pyt','js','java'],'pyt')
q3=Question('en kazancli prog lang?',['c#','pyt','js','java'],'pyt')
q4=Question('en cok sevilen prog lang?',['c#','pyt','js','java'],'pyt')
q5=Question('en kolay prog lang?',['c#','pyt','js','java'],'pyt')

questions=[q1,q2,q3,q4,q5]

quiz = Quizz(questions)
# question=quiz.getQuestion()
# print(question.Qtext)

quiz.loadQuestion()



Location: Ankara, Türkiye

Comments

Post a Comment

Popular posts from this blog

python - pro - 20 - SQLite

Pro: My SQL SQLite NoSQL PYQT5 - PYQT6 Bootstrap Python Beginner Intermediate Advanced Pro python-hosting Other course React Links General JS PHP Programming Python C++ Stuff SQLite server`a gerek duymayan bir veritabani cinsi Yerelde veri tutulacaksa SQLite daha iyi, cunku select delete veya update`i , kayit/record secerek, SQL tabanli oldugu icin SQLite`ta kolayca yapabiliriz. Ama txt veya excel dosyalar boyle bir imkani daha zorluklarla sagliyorlar. SQLite sadece bir dosya oluyor, uzantisi da db . Dosya icindeki tablo ve datalari gormek icin sqlitebrowser.or...
Read more

python - pro - 21 - NoSQL

Pro: My SQL SQLite NoSQL PYQT5 - PYQT6 Bootstrap Python Beginner Intermediate Advanced Pro python-hosting Other course React Links General JS PHP Programming Python C++ Stuff NoSQL Terminoloji karşılıkları:  MySQL MongoDB Database Database Table Collection Rows Documents (BSON) Columns Fields pip install pymongo mongodb sadece atlas uzerrinden calisiyor ve artik ucretli
Read more

python - pro - 19 - MySQL

Pro: My SQL SQLite NoSQL PYQT5 - PYQT6 Bootstrap Python Beginner Intermediate Advanced Pro python-hosting Other course React Links General JS PHP Programming Python C++ Stuff   Beginner  -  Intermediate  -  Advanced  - Pro - MySQL   -  SQLite MySQL -  Ben XAMPP ile baglanti kuracagim  pip install mysql-connector  # kullanilmiyor !!!!! deprecated diyor pypi.org pip install mysql-connector-python # XAMPP icin pip install pymysql - emin degilim ama yaptim Make connection import mysql . conne...
Read more