C ++ Branching/ Switch

Question

Need some help with this assignment before the deadline .

Topic

Branching

switch Statement

Description

Enhance the last assignment to include input validation. The enhanced assignment should check the values of day, month, and year entered by the user to ensure that they are OK. If they are not OK, the program should display an error message and return. The program should check the input values before computing the day number.

The program should validate the input values to ensure that:

· Year value is from 2000 to 2099 inclusive.

· Month value is from 1 to 12 inclusive.

· Day value is valid for the given month and the year.

Testing

Input Test Run 1

Enter Month: 4

Enter Day: 31

Enter Year: 2003

Output Test Run 1

Mismatching Month/Day Values Entered.

Month Value Entered: 4

Day Value Entered: 31

Input Test Run 2

Enter Month: 3

Enter Day: 31

Enter Year: 201

Output Test Run 2

Unacceptable Year Entered 201.

Acceptable range For Year is 2000 to 2099

Input Test Run 3

Enter Month: 2

Enter Day: 29

Enter Year: 2003

Output Test Run 3

Mismatching Month/Day Values Entered.

Month Value Entered: 2

Day Value Entered: 29

Input Test Run 4

Enter Month: 2

Enter Day: 29

Enter Year: 2004

Output Test Run 4

Date: 2/29/2004

Day Number: 60

Input Test Run 5

Enter Month: 3

Enter Day: 1

Enter Year: 2003

Output Test Run 5

Date: 3/1/2003

Day Number: 60

Input Test Run 6

Enter Month: 3

Enter Day: 1

Enter Year: 2004

Output Test Run 6

Date: 3/1/2004

Day Number: 61

Sample Code

/*

Java Code

*/

int day, month, year;



//input day, month, and year values here








//Validating Year Value

if ( year < 2000 || year > 2099 )

{

          JOptionPane.showMessageDialog

               (null, “Unacceptable Year Entered: “ + year );

JOptionPane.showMessageDialog

               (null, “Acceptable range For Year is 2000 to 2099 “ );



          System.return (0);

}



//Determining Leap year

boolean leapyear = false;

 if  ((year % 4) == 0)

{

          leapyear = true;

}


//Validating Month Value

if ( month < 1 || month > 12 )

{

          JOptionPane.showMessageDialog

                                (null, “Invalid Month Entered: “ + month );

          System.return (0);

}


//Validating YearValue

if ( year < 2000 || year > 2099 )

{

          JOptionPane.showMessageDialog

                               (null, “Unacceptable Year Entered: “ + year );

          JOptionPane.showMessageDialog

                              (null, “Valid Range For Year 2000 to 2099 );

System.return (0);

}


//Validating Day Value

if ( ( day < 1 ) || ( day > 31 ) )

{

          JOptionPane.showMessageDialog

                                (null, “Invalid Day Entered: “ + day );

          System.return (0);

}


//Validating Other Day Values

if (  ( month == 4 || month == 6 || month == 9 || month == 11)  && ( day > 30 ) )

{

          JOptionPane.showMessageDialog

                               (null, “Mismatching Month/Day Values Entered. “  );

          JOptionPane.showMessageDialog

                               (null, “Month Value Entered: “ + month );

JOptionPane.showMessageDialog

                      (null, “Day Value Entered: “ + day );

          System.return (0);

}



if ( (month == 2) && ( day > 29 ) && ( leapyear ) )

{

          JOptionPane.showMessageDialog

                              (null, “Mismatching Month/Day Values Entered: “  );

          JOptionPane.showMessageDialog

                             (null, “Month Value Entered: “ + month );

JOptionPane.showMessageDialog

                 (null, “Day Value Entered: “ + day );

          System.return (0);

}



if ( (month == 2) && ( day > 28 ) && ( ! leapyear ) )

{

          JOptionPane.showMessageDialog

                               (null, “Mismatching Month/Day Values Entered: “  );

          JOptionPane.showMessageDialog

                              (null, “Month Value Entered: “ + month );

JOptionPane.showMessageDialog

                    (null, “Day Value Entered: “ + day );

          System.return (0);

}

 /*

C++ Code

*/



/*

The code below asks the user to input month, day and year one after the other. It then validates the values entered. If any of the values is invalid, it displays an error message and returns.

*/



int day, month, year;



//input day, month, and year values here.









//Validate input values

//Determining Leap year

Bool leapyear = false;

 if  ((year % 4) == 0)

{

          leapyear = true;

}


//Validating YearValue

if ( year < 2000 || year > 2099 )

{

cout <<  “Unacceptable Year Entered: “ << year << endl;

          cout << “Valid Range For Year 2000 to 2099 << endl;

return (0);

}


//Validating Month Value

if ( month < 1 || month > 12 )

{



           cout << “Invalid Month Entered: “ << month << endl;

           return (0);

}


//Validating Day Value

if ( ( day < 1 ) || ( day > 31 ) )

{         

cout << “Invalid Day Entered: “ <<  day << endl;

          return (0);

}


//Validating Other Day Values

if (  ( month == 4 || month == 6 || month == 9 || month == 11)  && ( day > 30 ) )

{

          cout << “Mismatching Month/Day Values Entered. “  << endl;

          cout << “Month Value Entered: “ << month << endl;

cout <<  “Day Value Entered: “ << day << endl;

          return (0);

}



if ( (month == 2) && ( day > 29 ) && ( leapyear ) )

{

          cout << “Mismatching Month/Day Values Entered: “  << endl;

          cout << “Month Value Entered: “ << month << endl;

cout <<  “Day Value Entered: “ << day << endl;

          return (0);

}



if ( (month == 2) && ( day > 28 ) && ( ! leapyear ) )

{

          cout << “Mismatching Month/Day Values Entered: “ << endl;

          cout << “Month Value Entered: “ << month << endl;

cout <<  “Day Value Entered: “ << day << endl;

          return (0);

}

My code :

#include <iostream>

using namespace std;

int main()
{
    int day, month, year;

     cout<<"Enter month"<<endl;
     cin>> month;
     cout<<"Enter day" << endl;
     cin>>day;
     cout <<"Enter year"<<endl;
     cin>> year;

     bool leapyear = false;

 if  ((year % 4) == 0)

{

          leapyear = true;

}

 if (year<2000 || year > 2099)
 {
     cout <<"year is valid " <<endl;
 }
 else
 {


     cout <<"Unacceptable Year Entered "<< year << endl;

     cout <<"Valid Range For Year 2000 to 2099"<< endl;
 }

 if (month<1 || month> 12)
 {
     cout <<"month is valid "<<endl;
 }
 else
 {
     cout << "Invalid Month Entered "<<month<<endl;
 }

 // Validating Day Value
 if ((day<1) || day>31)
 {
     cout <<"day is valid "<<endl;
 } else
 {
     cout <<" Invalid Day Entered "<<day<<endl;

 }
 // Validating Other Day Values

 if ((month == 4 || month == 6 || month == 9 || month == 11) && (day >30))

 {
     cout << "month/Day is valid "<<endl;
 }
 else
     cout << "Mismatching Month/Day Values Entered:"<<endl;
     cout <<" Month Value Entered:" << month << endl;
     cout <<"Day Value Entered:"<< day << endl;


 }


if ( (month == 2) && ( day > 29 ) && ( leapyear ) )

{
    cout <<"Month /day values are valid "<<endl;
}else


          cout << “Mismatching month/day Values Entered: “  << endl;

          cout << “Month Value Entered: “ << month << endl;

cout <<  “Day Value Entered: “ << endl;

          return (0);

}



if ( (month == 2) && ( day > 28 ) && ( ! leapyear ) )

{
    cout << "month/day values are valid" <<endl;

}
else

          cout << “Mismatching Month/Day Values Entered: “ << endl;

          cout << “Month Value Entered: “ << month << endl;

cout <<  “Day Value Entered: “ << day << endl;

    return 0;
}

[MOD: formatted code blocks - srh]

Answer 1 · 2018-02-21T22:25:26Z

February 21, 2018 10:25pm

Question is on how to use switch statement in c++ language ignore the java code . for example: I have written this code for the program but still don't ask for the input and output that teachers want.

#include<iostream>
using namespace std;

/*

The code below asks the user to input month, day and year one after the other.
It then validates the values entered. If any of the values is invalid,
it displays an error message and returns.

*/

//main function
int main()
{
int day, month, year;
//input day, month, and year values here.
cout<<"Enter Month:";
cin>>month;

cout<<"Enter Day:";
cin>>day;

cout<<"Enter Year:";
cin>>year;

//Declaring leapyear variable
bool leapyear = false;
if ((year % 4) == 0)
{
leapyear = true;
}

//Validating YearValue
if (year < 2000 || year > 2099)
{
cout <<"Unacceptable Year Entered: "<< year << endl;
cout <<"Valid Range For Year 2000 to 2099 "<< endl;
return 0;
}

//Validating Month Value
if (month < 1 || month >12)
{
cout << "Invalid Month Entered: " << month << endl;
return 0;
}

//Validating Day Value
if ((day < 1)||(day >31 ) )
{
cout << "Invalid Day Entered: " << day << endl;
return 0;
}


//Validating Other Day Values
if (( month == 4 || month == 6 || month == 9 || month == 11) && ( day > 30 ) )
{
cout << "Mismatching Month/Day Values Entered. " << endl;

cout << "Month Value Entered: " << month << endl;

cout << "Day Value Entered: " << day << endl;

return 0;
}


if ((month == 2) && ( day > 29 ) && ( leapyear ) )
{

cout << "Mismatching Month/Day Values Entered. " << endl;

cout << "Month Value Entered: " << month << endl;

cout << "Day Value Entered: " << day << endl;

return 0;
}

if ( (month == 2) && ( day > 28 ) && (!leapyear ))
{

cout << "Mismatching Month/Day Values Entered. " << endl;

cout << "Month Value Entered: " << month << endl;

cout << "Day Value Entered: " << day << endl;

return 0;
}


// Determining day number and your day calculation start here

int dayNum;
//Finally If your execution reaches here
switch (month) {

case 1: //Checking for Jan

dayNum = day;

break;

case 2: //For Feb-> Adding Current days and Jan

dayNum = day + 31;

break;

case 3: //March -> adding for current month and for Jan and Feb

dayNum = day + 31 + 28;

break;

case 4: //April

dayNum = day + 31 + 28 + 31;

break;

case 5: //May

dayNum = day + 31 + 28 + 31 + 30;

break;
case 6: //June

dayNum = day + 31 + 28 + 31 + 30 + 31;

break;
case 7: //July

dayNum = day + 31 + 28 + 31 + 30 + 31 + 30;

break;
case 8: //August

dayNum = day + 31 + 28 + 31 + 30 + 31 + 30 + 31;

break;
case 9: //September

dayNum = day + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31;

break;

case 10: //October

dayNum = day + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30;

break;

case 11: //November

dayNum = day + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31;

break;
case 12: //December

dayNum = day + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 +30;

break;
}

//add 1 for a leap year

if (leapyear==true && month > 2)
{
dayNum ++;
}

//Printing output
cout<<"Data: "<<month<<"/"<<day<<"/"<<year<<endl;
cout<<"Day Number: "<<dayNum;
return 0;
}

Answer 2 · 2018-02-21T22:57:42Z

February 21, 2018 10:57pm

A quick search on google gave this example from MSDN :-)

// switch_statement1.cpp  
#include <stdio.h>  

int main() {  
   char *buffer = "Any character stream";  
   int capa, lettera, nota;  
   char c;  
   capa = lettera = nota = 0;  

   while ( c = *buffer++ )   // Walks buffer until NULL  
   {  
      switch ( c )  
      {  
         case 'A':  
            capa++;  
            break;  
         case 'a':  
            lettera++;  
            break;  
         default:  
            nota++;  
      }  
   }  
   printf_s( "\nUppercase a: %d\nLowercase a: %d\nTotal: %d\n",  
      capa, lettera, (capa + lettera + nota) );  
}

Welcome to the Treehouse Community

Looking to learn something new?

shirshah sahel

shirshah sahel

C ++ Branching/ Switch

Henrik Christensen

Henrik Christensen

Steven Parker

Steven Parker

2 Answers

shirshah sahel

shirshah sahel

Henrik Christensen

Henrik Christensen