Help a beginner out at c

Discussion in 'Programming General' started by Jason_x, Jun 27, 2010.

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Help a beginner out at c
  1. Unread #1 - Jun 27, 2010 at 9:21 PM
  2. Jason_x
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    Help a beginner out at c
    Code:
    #include <stdio.h>
int main()
{
    int age;      /*I want to kill this language*/
    
    printf("Please enter your age\n");  
    scanf("%d", &age); {      
                if (age < 100){     
                printf("Youre young.");
                }
                else if (age == 100){
                printf("Youre old as dirt.");
                }
                else {
                     printf("This is pointless\n");
                     
                     }
                return 0;
                }
                }
    My problem isnt compiling the damn thing its executing it, whenever I run it and input a variable it does nothing and when I hit enter the return 0; closes it. I am a complete noob at C so what am I doing wrong?
     
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  3. Unread #2 - Jul 2, 2010 at 12:14 AM
  4. Sythe
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    Help a beginner out at c
    Why do you have an arbitrary codeblock inside main, and what is with your indentation?

    Code:
    
#include <stdio.h>
int main()
{
    int age = 0; 
    
    printf("Please enter your age\n");  
    scanf("%d", &age);     

    if (age < 100) {     
        printf("You're young.\n");
    } else if (age == 100) {
        printf("You're 100 years old.\n");
    } else {
        printf("You're older than 100 years old.\n");
    }             
    
    return 0;
}

    ^ This works fine for me.

    If you're having trouble receiving input from the keyboard, then try fgets. It will retrieve a whole line, then you can use sscanf on it to parse its logical elements.

    Like this:
    Code:
    char buffer[1024];
buffer[0] = '\0';
fgets(buffer, 1023, stdin);
printf("line was: %s", buffer);
     
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  5. Unread #3 - Jul 2, 2010 at 10:14 AM
  6. Jason_x
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    Help a beginner out at c
    Ok thank you alot I was beginning to think noone was gonna say anything.
    So my problem was not putting a variable at the beginning?
    The code block is the way the tutorial showed me since the college I go to doesnt offer c programming as a class I have to follow internet tutorials lol.
     
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  7. Unread #4 - Jul 5, 2010 at 2:57 AM
  8. blindkilla
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    Help a beginner out at c
    You problem was you had an extra brace (by the looks of it).
     
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  9. Unread #5 - Jul 12, 2010 at 6:14 PM
  10. ET Phone Home
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    Help a beginner out at c
    sometimes i have trouble with my programs immediately closing because of the return 0;, so i usually put "getchar();" just before it, so the program will finish once you make a keystroke. I think it requires the conio.h library

    also this is probably bad programming but as a novice who frequently has the same problem thought id offer my 2 cents
     
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