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andrezito [222]
3 years ago
13

What is the output when you run the following program? print(3 + 7) print("2 + 3")

Computers and Technology
1 answer:
QveST [7]3 years ago
6 0

print(3+7) will output 10, which is an integer.

print("2+3") will output 2+3, which is a string.

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Which of the following statements is false? Question 4 options: By convention class names begin with an uppercase letter, and me
amm1812

Answer:

Instance variables can be declared anywhere inside a class.

Although there isn't any rule to declare instance variables before methods, and they can be declared anywhere in the class, they cannot be declared inside method definitions of class.

///////////////////////////////////////////////////////////////////////////////////////////////////////////

<em>By convention class names begin with an uppercase letter, and method and variable names begin with a lowercase letter.</em> - True.

<em>Instance variables exist before methods are called on an object, while the methods are executing and after the methods complete execution.</em> - True.

<em>A class normally contains one or more methods that manipulate the instance variables that belong to particular objects of the class.</em> - True

8 0
3 years ago
Read 2 more answers
Date Time Manipulation Exploration If you start from Jan 1st, 1757, and repeatedly add 8 days, until you hit 1800, how many time
zimovet [89]

Answer:

from datetime import datetime, date, timedelta

def count_weekdays(start_date, add_days, stop_year, weekday):

   my_date = start_date

   m = 0  

   while my_date.year != stop_year:  

       my_date = my_date + timedelta(days = add_days)

       if my_date.isoweekday() == weekday:

           m += 1

   return m

date_val = date(1757,1,1)

try:

   date_val = datetime.fromisoformat(input("Enter date in the format yyyy-mm-dd: "))

except ValueError:

   print("Wrong isoformat string")

print(count_weekdays(date_val, 8, 1800, 1))

Explanation:

The datetime package of the python programming language has several time modules like the date, datetime, pytz, timedelta, etc, used to manipulate date and time in documents. The function count_weekdays has four parameters and returns the number of a specified weekday in a period of time.

4 0
3 years ago
Which type of portfolio might a young investor who is not afraid of risk choose?
Keith_Richards [23]
i think it would be the investment with high risk and high return such as Stocks.When investing in stock, investor analyze whether a specific company will be doing well in the time of investment (which will increase the market price of the stock) and take a profit from it.
7 0
3 years ago
The Zootopia Police Department is recruiting new officers and has come up with an innovative equation to hire. They define hireS
Dahasolnce [82]

Answer:

#include<iostream>

#include<limits>

#include<iomanip>

using namespace std;

//function that returns true

//if there is invalid input like giving string as input

// for integer value.

bool isInvalidInput()

{

  //return true if cin.fail

  if(cin.fail())

  {

      //clear the buffer

      cin.clear();

      cin.ignore(numeric_limits<streamsize>::max(),'\n');

      return true;

  }

  return false;

}

//function that calculates the hire score for given 3 parameters.

double calHireScore(double agility,double strength,double speed)

{

  return (1.8*agility) + (2.16 * strength) + (3.24 * speed);

}

//calculate hire score for fox.

void calFoxHireScore()

{

  double agility,strength;

 

  cout<<"Enter Agility Value: ";

  //get agility as input and validate it.

  cin >> agility;

  if(isInvalidInput() || agility <= 0)

  {

      cout<<"\nError: Agility value must be > 0"<<endl;

      return;

  }

 

  cout<<"Enter Strength Value: ";

  cin >> strength;

  if(isInvalidInput() || strength <= 0)

  {

      cout<<"\nError: Strength value must be > 0"<<endl;

      return;

  }

 

  cout<<"\nHire Score for Fox: "<<calHireScore(agility,strength,0)<<endl;

}

//function that asks input from user for

//calculating hire score for Sloth.

void calSlothHireScore()

{

  double strength,speed;

 

  cout<<"Enter Strength Value: ";

  cin >> strength;

  if(isInvalidInput() || strength <= 0)

  {

      cout<<"\nError: Strength value must be > 0"<<endl;

      return;

  }

 

  cout<<"Enter Speed Value: ";

  cin >> speed;

  if(isInvalidInput() || speed <= 0)

  {

      cout<<"\nError: Speed value must be > 0"<<endl;

      return;

  }

 

  cout<<"\nHire Score for Sloth: "<<calHireScore(0,strength,speed)<<endl;

}

//function that asks input from user for

//calculating hire score for Bunny.

void calBunnyHireScore()

{

  double agility,speed;

 

  cout<<"Enter Agility Value: ";

  cin >> agility;

  if(isInvalidInput() || agility <= 0)

  {

      cout<<"\nError: Agility value must be > 0"<<endl;

      return;

  }

 

  cout<<"Enter Speed Value: ";

  cin >> speed;

  if(isInvalidInput() || speed <= 0)

  {

      cout<<"\nError: Speed value must be > 0"<<endl;

      return;

  }

 

  cout<<"\nHire Score for Bunny: "<<calHireScore(agility,0,speed)<<endl;

}

//function to display menu for user.

void menu()

{

  cout<<"\n1. Fox"<<endl;

  cout<<"2. Bunny"<<endl;

  cout<<"3. Sloth"<<endl;

  cout<<"0. Quit"<<endl;

  cout<<"Enter your choice: ";

}

//main method

int main()

{

  int choice;

  do

  {

      //asks choice

      menu();

      cin >> choice;

      //if invalid input print erro message

      if(isInvalidInput())

      {

          cout<<"\nError: Invalid choice enetered. Try Again\n";

      }

      else

      {

          cout<<"\n";

          //if any one of the choices do accordingly

          //for invalid choice print error mesage.

          switch(choice)

          {

              case 1:

                  calFoxHireScore();

                  break;

              case 2:

                  calBunnyHireScore();

                  break;

              case 3:

                  calSlothHireScore();

                  break;

              case 0:

                  cout<<"\nQutting...\n";

                  break;

              default:

                  cout<<"Invalid choice entered."<<endl;

                  break;

          }

      }

     

  }while(choice != 0);

 

  return 0;

}

Explanation:

3 0
3 years ago
What are the differences between packet and circuit switching? Which is more prevalent today?
Juliette [100K]

Answer: The difference present between the packet switching and circuit switching are as follows:-

  • Packet switching i the switching in which the data packet travels through the connectionless path whereas connection oriented routes are present for circuit switching
  • Network layer uses the feature of packet switching while physical layer uses circuit switching technique
  • Data transferring is mostly preferred through packet switching and voice communication takes place through the circuit switching.
  • Packet switching is considered flexible as no already established connection is present for switching but the connection in circuit switching are already defined which makes it less flexible.

Among the packet switching and circuit switching , packet switching is preferred for the communication through the data packets because they have  flexibility and affordability.It can establish numerous connection for switching and this make it efficient.

4 0
3 years ago
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