Answer:
Internet
Explanation:
A collection of a set of instrument that solve a problem is called the internet.
The Internet is an enormous networking infrastructure that uses the Internet protocol suite (TCP/IP). It connects millions of computers together globally, forming a network in which computers can communicate with each other provided that they are both connected to the Internet.
The Internet contains billions of web pages and resources created by software engineers from around the world, making it a limitless place to locate information and solve peculiar problems.
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Answer:
Explanation:
This would be considered a setter method. In most languages the parameter of the setter method is the same as the variable that we are passing the value to. Therefore, within the function you need to call the instance variable and make it equal to the parameter being passed. It seems that from the function name this is being written in python. Therefore, the following python code will show you an example of the Employee class and the set_age() method.
class Employee:
age = 0
def __init__(self):
pass
def set_age(self, age):
self.age = age
As you can see in the above code the instance age variable is targeted using the self keyword in Python and is passed the parameter age to the instance variable.
Answer:
Hi Riahroo! This is a good question on the concept of relational databases.
We can normalize the relations as follows:
Flight
(flightnumber (unique), flighttime, airline_id, departure_city, arrival_city, passenger_id, pilot_id, airplane_id)
has_one_and_belongs_to :airline
has_many :passengers
has_one :pilot
Itinerary(passenger_id, flight_id)
Belongs_to
Passenger_details
(passengername (unique), gender, date_of_birth)
has_many :flights
Pilot
(pilotname (unique), gender, date_of_birth)
has_many :flights
airline(airlinename)
airplane(planeID, type, seats))
Explanation:
To normalize a relation, we have to remove any redundancies from the relationships between database objects/tables and simplify the structure. This also means simplifying many-to-many relationships. In this question, we see there is a many-to-many relationship between flights and passengers. To resolve this we can introduce a join table which simplifies this relationship to a one-to-many between the objects.
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Hope this helps.
