C First Program


C Programming Introduction: Tips
1. Every C Program Should have exactly one main function
2. C Program Execution Always Starts from main.
3. Execution of C Program begins at Opening brace of function and ends
at closing brace of the function
4. Generally all statements in c are written in Lowercase Letters.

5. Uppercase Letters are used for Symbolic names, output strings and messages
6. Every C statement must ends with semicolon
7. All variables must be declared with respective data types before using.
8. C is free form-Language
9. Comments can be inserted anywhere in C Program, but nested comments are not supported by C.
10. Braces are Generally Used for the Grouping of statements

Sample C Program :

//C hello world example
#include <stdio.h>
int main()
{
printf("Hello world\n");
return 0;
}

Output:
     Hello world