Program To Calculate The Grade Of A Student

program to calculate the grade of a student Rate Topic:

#1 gege

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Posted 11 April 2009 - 05:14 AM

#include<iostream.h>
#include<conio.h>
int main()
{
	char fname[20];
   char lname[15];
	char grade;
   int age;
   cout<<"what is your first name?"<<endl;
   cin.get(fname,20);
   cout<<"what is your last name?"<<endl;
   cin.get(lname,15);
   cout<<"what letter grade do you deserve?"<<endl;
   cin>>grade;
   grade--;
   cout<<"what is your age?"<<endl;
   cin>>age;
   cout<<"name:"<<lname<<","<<fname<<endl;
   cout<<"grade:"<<grade<<endl;
   cout<<"age:"<<age<<endl;
   getch();
   return 0;
}

when the program runs it skips lname i don't know why

*** MOD EDIT: Added code tags. Please :code:

***

This post has been edited by JackOfAllTrades: 11 April 2009 - 05:58 AM

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#2 janotte

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Posted 11 April 2009 - 05:52 AM

Welcome to DIC!

1 - Please :code:

2 - Why are you using <iostream.h> instead of <iostream>?

3 - Why no line using namespace std; at the top of your code?

4 - I'd suggest replacing getch(); with getchar();

5 - I'd suggest using C++ strings in place of C-style array strings like char fname[20];. Read more here
http://www.cplusplus...ference/string/

6 - I'd suggest replacing your calls to cin.get() with getline(). Read more here
http://www.cplusplus...string/getline/

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#3 gege

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Posted 11 April 2009 - 07:24 AM

janotte, on 11 Apr, 2009 - 05:52 AM, said:

Welcome to DIC!

1 - Please :code:

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#4 Pwn

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Posted 11 April 2009 - 08:29 AM

gege, you've posted janotte's reply twice and nothing else...what is it you're trying to do?

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#5 JackOfAllTrades

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Posted 11 April 2009 - 10:30 AM

Got rid of extra post with no new content.

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#6 Ryan2

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Posted 11 April 2009 - 03:12 PM

gege, on 11 Apr, 2009 - 05:14 AM, said:

#include<iostream.h>
#include<conio.h>
int main()
{
	char fname[20];
   char lname[15];
	char grade;
   int age;
   cout<<"what is your first name?"<<endl;
   cin.get(fname,20);
   cout<<"what is your last name?"<<endl;
   cin.get(lname,15);
   cout<<"what letter grade do you deserve?"<<endl;
   cin>>grade;
   grade--;
   cout<<"what is your age?"<<endl;
   cin>>age;
   cout<<"name:"<<lname<<","<<fname<<endl;
   cout<<"grade:"<<grade<<endl;
   cout<<"age:"<<age<<endl;
   getch();
   return 0;
}

when the program runs it skips lname i don't know why

*** MOD EDIT: Added code tags. Please :code:

***

Put a cin.ignore() before it.

eg

#include<iostream.h>
#include<conio.h>
int main()
{
		char fname[20];
   char lname[15];
		char grade;
   int age;
   cout<<"what is your first name?"<<endl;
   cin.get(fname,20);
   cout<<"what is your last name?"<<endl;
   cin.ignore();
   cin.get(lname,15);
   cout<<"what letter grade do you deserve?"<<endl;
   cin>>grade;
   grade--;
   cout<<"what is your age?"<<endl;
   cin>>age;
   cout<<"name:"<<lname<<","<<fname<<endl;
   cout<<"grade:"<<grade<<endl;
   cout<<"age:"<<age<<endl;
   getch();
   return 0;
}

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#7 Ryan2

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Posted 11 April 2009 - 03:24 PM

Ryan2, on 11 Apr, 2009 - 03:12 PM, said:

gege, on 11 Apr, 2009 - 05:14 AM, said:

#include<iostream.h>
#include<conio.h>
int main()
{
	char fname[20];
   char lname[15];
	char grade;
   int age;
   cout<<"what is your first name?"<<endl;
   cin.get(fname,20);
   cout<<"what is your last name?"<<endl;
   cin.get(lname,15);
   cout<<"what letter grade do you deserve?"<<endl;
   cin>>grade;
   grade--;
   cout<<"what is your age?"<<endl;
   cin>>age;
   cout<<"name:"<<lname<<","<<fname<<endl;
   cout<<"grade:"<<grade<<endl;
   cout<<"age:"<<age<<endl;
   getch();
   return 0;
}

when the program runs it skips lname i don't know why

*** MOD EDIT: Added code tags. Please :code:

***

Put a cin.ignore() before it.

eg

#include<iostream.h>
#include<conio.h>
int main()
{
		char fname[20];
   char lname[15];
		char grade;
   int age;
   cout<<"what is your first name?"<<endl;
   cin.get(fname,20);
   cout<<"what is your last name?"<<endl;
   cin.ignore();
   cin.get(lname,15);
   cout<<"what letter grade do you deserve?"<<endl;
   cin>>grade;
   grade--;
   cout<<"what is your age?"<<endl;
   cin>>age;
   cout<<"name:"<<lname<<","<<fname<<endl;
   cout<<"grade:"<<grade<<endl;
   cout<<"age:"<<age<<endl;
   getch();
   return 0;
}

Its better to just use cin.getline() though

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