Porblem In Coding !!!!

This is a discussion on Porblem In Coding !!!! within the C Programming forums, part of the General Programming Boards category; Question is :- Any char is inter thorugh keyboard ,write a pgm to determine whether the char is enter is ...

  1. #1
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    Porblem In Coding !!!!

    Question is :- Any char is inter thorugh keyboard ,write a pgm to determine whether the char is enter is capital , small case letter, digit or a symbol.
    NOTE:- using logical operators only or conditional operators
    i wrote a pgm for that... and there is one error..and one
    warning and even i do not know..the pgm is correct or not... please check and help me.

    here is the code..

    Code:
    #include <stdlib.h>
    #include <conio.h>
    #include <ctype.h>
    #include <stdio.h>
    main()
    {
    char a;
    printf(" Enter Any Char in Capital or small case or any digit or any number");
    scanf("&#37;c",&a);
    clrscr();
    if((a>=65 && a<=90)||(a>=97 && a<=122))
    {
    printf("CapsLock"); /* In this Line i get Error "Expression syntax is in function main() */
    }
    else
    printf("Small Case letter");
     
     
     if((a>='0' && a<='9'))
     printf(" Digit");
     
     
    if((a>=0 && a<=46 && a>=58 && a<=64 && a>=91 && a<=96 && a>=123 && a<=127))    /* In this line i get warning that " Constant out of range." */
    printf("Speical Symbol");
    getch();
    }
    Please help.
    Last edited by RahulDhanpat; 02-11-2008 at 01:55 PM.

  2. #2
    CSharpener vart's Avatar
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    ((a>=65 && a<=90)||(a>=97 && a<=122)

    PS. Instead of using magic numbers - better use constants like 'a' 'z' 'A' 'Z' - they make your code more readable
    The first 90% of a project takes 90% of the time,
    the last 10% takes the other 90% of the time.

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    Just editted few lines!

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    CSharpener vart's Avatar
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    Quote Originally Posted by RahulDhanpat View Post
    Just editted few lines!
    Are you using copy/paste from your Editor window?
    The first 90% of a project takes 90% of the time,
    the last 10% takes the other 90% of the time.

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    Quote Originally Posted by vart View Post
    ((a>=65 && a<=90)||(a>=97 && a<=122)

    PS. Instead of using magic numbers - better use constants like 'a' 'z' 'A' 'Z' - they make your code more readable

    Pleaase check my pgm once again... i also realised that i missed OR operator but after that i got one more problem....


    and i tried to use 'a' in this pgm but i got 18 errors and as i remove ' ' ..the error gone....can you explain y it happens?

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    from 97 we have small letters..
    Code:
    if(int a>=65 && <=90)
         printf("caps..");
    else if(chk for btween 97 & 122)
         printf('lowercase..");
    else if(chk for digits)
         printf("...");
    else
         printf("symbol")

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    Quote Originally Posted by vart View Post
    Are you using copy/paste from your Editor window?
    \

    Ya..... I m using Turbo c++ so i ahve to open each file in text editor and then copy my written text then paste it here. its really disgusting because Turbo C++ does not copy directly/.

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    where did you use 'a'?

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    Is my pgm right? I mean i on the correct path? if yes then please give me solution of the lines i m getting error

  10. #10
    CSharpener vart's Avatar
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    with the following code I do not get any errors in VS2005
    Code:
    #include <stdio.h>
    int main(void)
    {
    	char a;
    	printf(" Enter Any Char in Capital or small case or any digit or any number");
    	scanf("&#37;c",&a);
    
    	if((a>=65 && a<=90)||(a>=97 && a<=122))
    	{
    		printf("CapsLock"); /* In this Line i get Error "Expression syntax is in function main() */
    	}
    	else
    		printf("Small Case letter");
    
    
    	if((a>='0' && a<= '9'))
    		printf(" Digit");
    
    
    	if((a>=0 && a<=46 && a>=58 && a<=64 && a>=91 && a<=96 && a>=123 && a<=127))    /* In this line i get warning that " Constant out of range." */
    		printf("Speical Symbol");
    
    	return 0;
    }
    Are you sure you compiling the code you are posting?
    The first 90% of a project takes 90% of the time,
    the last 10% takes the other 90% of the time.

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    Quote Originally Posted by edesign View Post
    where did you use 'a'?
    \


    i used

    char 'a' ;

    ???????????????????????????????? I feel i did some bluder her????????????????????????

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    start using visual studio, just 2-3 steps u need to remember to compile your c program..

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    no you cant do it like that..
    when you write char a or int b
    you are defining a variable,which is of datatype char or int respectively...you need to follow some rules to give a variable name...you can't have a variable named a-b, or 'a'..why you wanted to use char 'a'?

    also your logic is wrong..
    for ascii values between 97 to 122 we have small letters...
    Ask if still in doubt

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    Quote Originally Posted by vart View Post
    with the following code I do not get any errors in VS2005
    Code:
    #include <stdio.h>
    int main(void)
    {
    	char a;
    	printf(" Enter Any Char in Capital or small case or any digit or any number");
    	scanf("%c",&a);
    
    	if((a>=65 && a<=90)||(a>=97 && a<=122))
    	{
    		printf("CapsLock"); /* In this Line i get Error "Expression syntax is in function main() */
    	}
    	else
    		printf("Small Case letter");
    
    
    	if((a>='0' && a<= '9'))
    		printf(" Digit");
    
    
    	if((a>=0 && a<=46 && a>=58 && a<=64 && a>=91 && a<=96 && a>=123 && a<=127))    /* In this line i get warning that " Constant out of range." */
    		printf("Speical Symbol");
    
    	return 0;
    }
    Are you sure you compiling the code you are posting?
    yes but without the line i mention as error.......


    and i compikled your pgm in MS visual c++5
    and then turbo c++ both are giving 4 error and 1 warning msg??????????????????????

  15. #15
    CSharpener vart's Avatar
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    Look at this sample
    Code:
    if((a>='0' && a<= '9'))
       printf(" Digit");
    Isn't it more readable?
    Make the rest of your checks the same way
    The first 90% of a project takes 90% of the time,
    the last 10% takes the other 90% of the time.

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