1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
avanturin [10]
3 years ago
8

Write a program that prompts the user to enter the year and the first three letters of a month name (with the first letter in up

percase) and displays the number of days in the month.

Computers and Technology
1 answer:
elena55 [62]3 years ago
5 0

Answer:

I am writing a C++ program.

#include <iostream> // for input output functions

using namespace std; // to identify objects like cout, cin

int main() { // start of main() function body

   int year; // stores the year entered

   string month;  // holds the letters of a month

   cout<<"Enter the Year: "; // prompts user to enter year

   cin>>year; // reads year entered by user

   cout<<"Enter first three letters of a month ";

// prompts user to enter first three letters of a month

   cin>>month;    //reads the three letters of month entered by the user

// formula to determine leap year

   bool leapYear =((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);

//if checks if the 3 letters of input month match with one from these months  

if ( month == "Jan" || month =="Mar" || month == "May" || month == "Jul" || month == "Aug"|| month == "Oct"|| month == "Dec")

 //displays no of days in input month and year are 31

 cout<<"Number of days in "<<month<<" "<<year<<": 31 ";

//else- if checks if the input month matches with one from these months

else if (month =="Apr" || month=="Jun"|| month == "Sep"|| month == "Nov")

 //displays no of days in input month and year are 31

       cout<<"Number of days in "<<month<<" "<<year<<": 30 ";

else if (month =="Feb") //if the input month is Feb

cout<<"Number of days in "<<month<<" "<<year<<": "<<((leapYear) ? 29 : 28); // checks if the year is leap if yes then displays 29 days else 28

else //if none of the above if else conditions is true

{cout<<"Not a valid entry"; //displays invalid entry

    exit(0); //exits the program } }

             

Explanation:

The basic working of this program is briefly described in the comments above. I will explain the logic of the program.

This program takes int type year and a string month from the user (first three letters of the month).

Then it computes that if the year entered by the user is a leap year by this formula:

((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)

A leap year has 366 days and year which is not a leap year has 365 days. modulus operator is used here which returns the remainder of the division. If the input year is completely divisible by 4 which means we get remainder 0 then mod of year is taken with 100.  If the input year is evenly divisible by 100 then mode of year is taken with 400. Then if the input year is completely divisible by 400 this means the year is a leap year. Otherwise, year is not a leap year.

Next the IF statement is used to check the condition if the first three letters the month entered by the user matches one of the those mentioned in the if statement. As we know that the months Jan, March, May, July, Aug, Oct and Dec have 31 days so if the input month is any of these months then the message is displayed that the month has 31 days.

If the input month is not from the above months then else-if part is checked for input month. If the input month's letters matches with any of the months in else-if condition then the message displayed that the input year and month has 30 days.

If the above if and else if statement evaluate to false then the second else-if part is executed which checks if the input month is Feb, if its true the conditional statement checks if the input year is a leap year or not. If the input year is a leap year then the month Feb has 29 days otherwise 28 days.

If none of the above conditions are true this means that the user might be entering wrong letters such as Fab or Aig etc instead of Feb or Aug, so the message printed : Not a valid entry and program exits.

Screenshot of program along with its output is attached.

You might be interested in
"Create a Python program named detect_column_level_data_entry_errors. When complete, you will run this program to produce a diag
11111nata11111 [884]

Answer:

See explaination

Explanation:

Code for detect_column_level_data_entry_errors.py:

# File: detect_column_level_data_entry_errors.py

# The program will produce a diagnostic report that shows data entry errors that cause column

# totals in the data to be out of balance. Will need to fix cleaned_data.txt until errors resolved.

def main():

input_filename = input('Please enter the input filename: ')

infile = open(input_filename, 'r', encoding='utf8')

total_males = 0

total_females = 0

sum_total = 0

print('\n{0:^40}'.format('Column-Level Data Entry Errors'))

print('\n{0:<10}{1:>10}{2:>10}{3:>10}'.format(

'Age Group', 'Males', 'Females', 'Total'))

for line in infile:

age_group, males, females, total = line.split()

males = int(males)

females = int(females)

total = int(total)

print('{0:<10}{1:>10,}{2:>10,}{3:>10,}'.format(

age_group, males, females, total))

if age_group != 'Total':

total_males = males + total_males

total_females = females + total_females

sum_total = total + sum_total

else:

print('{0:<10}{1:>10,}{2:>10,}{3:>10,}'.format(

'Error', (males-total_males), (females-total_females), (total-sum_total)))

infile.close()

main()

8 0
3 years ago
Harry wants to change the background of all of his presentation slides. Which slide will enable him to make this change to all t
Mamont248 [21]

Answer:

The answer to the following blank is Theme.

Explanation:

To change themes in powerpoint:

  1. Firstly, click on DESIGN tab then, click in the Themes group.
  2. Then, choose one of the following themes.
  3. Then, under Custom, choose the custom theme to apply.
  4. Then, under Office, click the built-in themes and apply. If users goal is display the little to no color in the user's presentations then, apply the Office Theme.  
  5. After all, click the Browse for Themes, and then locate and then click the theme.
5 0
3 years ago
What type of document is a mobile device's EULA?
MakcuM [25]
EULA stands for End User License Agreement. This document is the contract between the software application author or publisher and the user of that application. It is also called "software license", because it establishes the purchaser's right to use the software on the mobile device. T<span>he user agrees to pay for the privilege of using the software, and promises the software author or publisher to comply with all restrictions stated in the EULA. </span>
6 0
3 years ago
You should check your battery ___________. Every week Never Every six months Every 30,00 miles
vova2212 [387]

The answer is Every six months

A battery acts as the brain of a car and is used to power almost everything. It can last up to five years. However, this lifespan will depend on how well the battery is maintained and the type of weather conditions you live in. Aim to check your car battery at least twice a year. Actually, it is best to check your battery regularly and not to wait for your mechanic to test your battery during routine servicing.

5 0
3 years ago
Read 2 more answers
You often insert your company's logo into a document you create.one way to make it easier for you to quickly insert it is to sav
eduard
Save the logo as a TEMPLATE.

A template is a pre-developed page layout in soft copy or hard copy used to make pages with the same pattern, style, or design.

In the above scenario, you can prepare a template with you logo in it and save it for future use. In the event that you need to create a new document, you only have to bring up the saved template and edit it with the new information that you need to type.

This way, you will not be hassled to manually add your logo to every new document you create.
5 0
3 years ago
Other questions:
  • You have been allocated a class C network address of 211.1.1.0 and are using the default subnet mask of 255.255.255.0 how many h
    14·1 answer
  • _____ is the software that protects you computer from harmful files, Trojan horses, and worms.
    13·2 answers
  • What are the benefits of e learning​
    9·1 answer
  • In an array based implementationof a queue a possible solution to dealing with the full condition is to
    14·1 answer
  • True or false when a host gets an IP address from a DHCP server it is said to be configured manually
    15·1 answer
  • What is the cell reference for row 22 and column B? __________<br><br> In excel
    5·1 answer
  • How are Earth's plates made?
    14·1 answer
  • What is the velocity of a 0.100kg car with a momentum of 5 kgm/s?
    12·1 answer
  • AYUDAAA ESPARA HOYYY
    14·2 answers
  • What are the value and data type (float, int, bool, or str) of this expression:<br> 5 // 2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!