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;

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