|
| 1 | +''' |
| 2 | +Create a class programmer for storing information of a few programmers working at Microsoft.''' |
| 3 | + |
| 4 | +class Programmer: |
| 5 | + company = "Microsoft" |
| 6 | + |
| 7 | + def __init__(self, name, product): |
| 8 | + self.name = name |
| 9 | + self.product = product |
| 10 | + |
| 11 | + def getInfo(self): |
| 12 | + print(f"The name of the {self.company} programmer is {self.name} and the product is {self.product}") |
| 13 | + |
| 14 | +mahar = Programmer("Mahar", "Skype") |
| 15 | +kevin = Programmer("Kevin", "GitHub") # Changed alka to kevin |
| 16 | +mahar.getInfo() # Output: The name of the Microsoft programmer is Mahar and the product is Skype |
| 17 | +kevin.getInfo() # Output: The name of the Microsoft programmer is Kevin and the product is GitHub |
| 18 | + |
| 19 | + |
| 20 | +''' |
| 21 | +write a class calculator capable of finding square, cube, and the square root of a number. |
| 22 | +''' |
| 23 | +class Calculator: |
| 24 | + def __init__(self, num): |
| 25 | + self.number = num |
| 26 | + |
| 27 | + def square(self): |
| 28 | + print(f"The value of {self.number} square is {self.number ** 2}") |
| 29 | + |
| 30 | + def squareRoot(self): |
| 31 | + print(f"The value of {self.number} square root is {self.number ** 0.5}") |
| 32 | + |
| 33 | + def cube(self): |
| 34 | + print(f"The value of {self.number} cube is {self.number ** 3}") |
| 35 | + |
| 36 | +a = Calculator(9) |
| 37 | +a.square() # Output: The value of 9 square is 81 |
| 38 | +a.squareRoot() # Output: The value of 9 square root is 3.0 |
| 39 | +a.cube() # Output: The value of 9 cube is 729 |
| 40 | + |
| 41 | + |
| 42 | + |
| 43 | +'''Write a class Train which has methods to book a ticket, get status(no of seats), |
| 44 | +and get fare information of trains running under Indian Railways. |
| 45 | +''' |
| 46 | +class Train: |
| 47 | + def __init__(self, name, fare, seats): |
| 48 | + # Initialize instance attributes |
| 49 | + self.name = name |
| 50 | + self.fare = fare |
| 51 | + self.seats = seats |
| 52 | + |
| 53 | + def getStatus(self): |
| 54 | + # Display train status |
| 55 | + print("************") |
| 56 | + print(f"The name of the train is {self.name}") |
| 57 | + print(f"The seats available in the train are {self.seats}") |
| 58 | + print("************") |
| 59 | + |
| 60 | + def fareInfo(self): |
| 61 | + # Display fare information |
| 62 | + print(f"The price of the ticket is: Rs {self.fare}") |
| 63 | + |
| 64 | + def bookTicket(self): |
| 65 | + # Book a ticket if seats are available |
| 66 | + if self.seats > 0: |
| 67 | + print(f"Your ticket has been booked! Your seat number is {self.seats}") |
| 68 | + self.seats -= 1 # Reduce available seats |
| 69 | + else: |
| 70 | + print("Sorry, this train is full! Kindly try in tatkal") |
| 71 | + |
| 72 | + def cancelTicket(self, seatNo): |
| 73 | + pass # To be implemented for canceling tickets |
| 74 | + |
| 75 | +# Create an instance and perform operations |
| 76 | +intercity = Train("Intercity Express: 14015", 90, 2) |
| 77 | +intercity.getStatus() # Output: The name and available seats of the train |
| 78 | +intercity.bookTicket() # Output: Successful ticket booking with seat number |
| 79 | +intercity.bookTicket() # Output: Successful ticket booking with seat number |
| 80 | +intercity.bookTicket() # Output: The train is full message |
| 81 | +intercity.getStatus() # Output: Updated available seats after bookings |
| 82 | + |
| 83 | + |
| 84 | +'''Can you change the self parameter inside a class to something else (say 'mahar')? |
| 85 | +Try changing self to 'slf' or 'mahar' and see the effects''' |
| 86 | +class Sample: |
| 87 | + def __init__(slf, name): |
| 88 | + slf.name = name |
| 89 | + |
| 90 | +obj = Sample("mahar") |
| 91 | +print(obj.name) # no proble, ypu can change but its better to use self |
| 92 | + |
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