is this what we should start with?

This is a discussion on is this what we should start with? within the C Programming forums, part of the General Programming Boards category; I got the idea from a source in the projects part of website so thought id try it on my ...

  1. #1
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    is this what we should start with?

    I got the idea from a source in the projects part of website so thought id try it on my own.

    Code:
    #include <stdio.h>
    #include <string.h>
    
    int main()
    {
        int age;
        char name[3];
        
        printf( "Enter name of animal: " );
        scanf( "%s", name );
        if ( strcmp( name, "dog" ) == 0) {
             printf( "ok, its a dog\n");
             printf( "enter age: " ); 
             scanf( "%d", &age );
             age *= 7;
             printf( "your dog is %d in doggy years heh\n", age ); }
             else if (strcmp(name, "cat" ) == 0) {
                  printf ( "ok its a cat\n" );
                  printf ( "enter age: " );
                  scanf( "%d", &age );
                  age *= 7;
                  printf( "your cat is %d in cat years\n", age); }
             
             getchar();
             getchar();
             return 0;
             }
    it works fine, is this the easiest way to right it or is there a different way?

    but anyway, is this ok for my first tinyyyyyyy program?

    reece.

  2. #2
    Devil's Advocate SlyMaelstrom's Avatar
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    Looks alright for a first try, the only thing is, you should try to avoid doing the same things in all cases. For instance getting the age and you multiply age by 7 for both cats and dogs. So you should just put that at the bottom as well as the string that outputs the name and years.

    Code:
    age *= 7;
    printf( "your %s is %d in %s years\n", name, age, name);
    You may have to knock the \n character that may or maynot be in your name string, otherwise you output could look like:

    your cat
    is 41 in cat
    years
    Sent from my iPadŽ

  3. #3
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    ok thanks for the tip. yeh i tried putting the age *= 7 at the top and bottom, middle everything and it wouldnt work for them both lol, didnt think of doing the
    Code:
     printf( "your "%s" is "%d" is %s" years old\n" name, age, name );
    works fine when run though so im happy with it considering its my first try at something from a blank page

    thanks. reece.

    last thing, any ideas on a simple program like this that i shud try to do to get me going?

  4. #4
    Devil's Advocate SlyMaelstrom's Avatar
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    Code:
    printf( "your "%s" is "%d" is %s" years old\n" name, age, name );
    This is wrong, you don't close quotes for the identifiers in the string.

    Code:
    printf( "your %s is %d is %s years old\n" name, age, name );
    Not to mention that it says "Your cat is 10 is cat years old"
    Sent from my iPadŽ

  5. #5
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    bah, fixed it.

    this works perfect.

    Code:
    #include <stdio.h>
    #include <string.h>
    
    int main()
    {
        int age;
        char name[3];
        
        printf( "Enter name of animal: " );
        scanf( "%s", name );
        if ( strcmp( name, "dog" ) == 0) {
             printf( "ok, its a dog\n");
             printf( "enter age: " ); 
             scanf( "%d", &age );}
             else if (strcmp(name, "cat" ) == 0) {
                  printf ( "ok its a cat\n" );
                  printf ( "enter age: " );
                  scanf( "%d", &age );}{
                  age *= 7;
                  printf("your %s is %d is %s years old\n", name, age, name );
             getchar();
             getchar();
             getchar();
             return 0;
    }
    }
    any ideas of other small programs to start with?

    any u first tried?

  6. #6
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    Code:
    char name[3];
    Name needs at least four elements to accomadate the NULL terminator placed at the end of strings.
    This program could also be compacted a little more:
    Code:
    #include <stdio.h>
    #include <string.h>
    
    int main()
    {
        int age;
        char name[4];
        
        printf( "Enter name of animal: " );
        scanf( "%s", name );
        if (!strcmp(name, "dog") || !strcmp(name, "cat")) 
       {
             printf( "ok, its a %s\n", name);
             printf( "enter age: " ); 
             scanf( "%d", &age );
             printf("your %s is %d years old which is %d in human years\n", name, age, age*7);
    	
       }
       else
          printf("I've never heard of a %s\n", name);
                  
        getchar();
        getchar();
        getchar();
           
    	return 0;
    
    }
    Next you could try to create a simple database program that asks the user to enter records and allows him get information for a record.

  7. #7
    Shibby willc0de4food's Avatar
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    or you could make a blackjack program. i made one on my TI-83+, its not difficult when you dont have to worry about creating a GUI ;]
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  8. #8
    Devil's Advocate SlyMaelstrom's Avatar
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    I once made a graphical blackjack program in MS Excel with VBA.

    It was... not good, to say the least. It worked, though.
    Sent from my iPadŽ

  9. #9
    Shibby willc0de4food's Avatar
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    *claps for skymaelstrom*
    feel better?

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  10. #10
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    ok ill try a database program, any chance youv got a small piece of code from one that i can check out? :-D or the tutorials for them?

  11. #11
    Shibby willc0de4food's Avatar
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    depends on the type of database.
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  12. #12
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    one where you enter a name, then last name and then age and it stores it. or you can look some up.

    and even when uve closed it, if u re open the program u can search for what u entered.

    ?

  13. #13
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    First you would need to define the structure of each record for example
    Code:
    typedef struct Record
    {
       char FirstName[20];
       char LastName[20];
       int Age;
    };
    It is best to split your program into seperate functions, you could create functions for loading (using fread() ), saving (using fwrite() )and searching (using strcmp/strcmpi to search by first or last name)

  14. #14
    Shibby willc0de4food's Avatar
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    i was thinking like mysql, mssql, etc.
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