pythonclassdefinition.txt

#CLASSES
#constructor declaration
def __init__(self):
    # body of the constructor

#self constructors - definition & declaration
class GeekforGeeks: 
    geek = "" 
  
    # default constructor 
    def __init__(self): 
        self.geek = "GeekforGeeks"
  
    # a method for printing data members 
    def print_Geek(self): 
        print(self.geek) 
  
  
# creating object of the class 
obj = GeekforGeeks() 
  
# calling the instance method using the object obj 
obj.print_Geek() 

#Parameterized Constructors
##PARAMETER PASSING
lass Addition: 
    first = 0
    second = 0
    answer = 0
      
    # parameterized constructor 
    def __init__(self, f, s): 
        self.first = f 
        self.second = s 
      
    def display(self): 
        print("First number = " + str(self.first)) 
        print("Second number = " + str(self.second)) 
        print("Addition of two numbers = " + str(self.answer)) 
  
    def calculate(self): 
        self.answer = self.first + self.second 
  
# creating object of the class 
# this will invoke parameterized constructor 
obj = Addition(1000, 2000) 
  
# perform Addition 
obj.calculate() 
  
# display result 
obj.display() 

#CLASS 
class Shark:
    def swim(self):
        print("The shark is swimming.")

    def be_awesome(self):
        print("The shark is being awesome.")


def main():
    sammy = Shark()
    sammy.swim()
    sammy.be_awesome()

if __name__ == "__main__":
    main()


#Definition1
class Shark:
    def __init__(self, name):
        self.name = name

    def swim(self):
        # Reference the name
        print(self.name + " is swimming.")

    def be_awesome(self):
        # Reference the name
        print(self.name + " is being awesome.")



#Definition2 - positional argument
class Shark:
    def __init__(self, name):
        self.name = name

    def swim(self):
        print(self.name + " is swimming.")

    def be_awesome(self):
        print(self.name + " is being awesome.")


def main():
    # Set name of Shark object
    sammy = Shark("Sammy")
    sammy.swim()
    sammy.be_awesome()

if __name__ == "__main__":
    main()

#Definition3 - class instantiation
class Shark:
    def __init__(self, name):
        self.name = name

    def swim(self):
        print(self.name + " is swimming.")

    def be_awesome(self):
        print(self.name + " is being awesome.")

def main():
    sammy = Shark("Sammy")
    sammy.be_awesome()
    stevie = Shark("Stevie")
    stevie.swim()

if __name__ == "__main__":
  main()