Programming rules of “C”

1. Every ‘C’ program file must be saved with an extension.c
2. Every c program must be written in a function main().
3. Every statement must be terminated with a semi -colon (;)
4. Variables must be declared before use them.
5. Comments are ignored by the compiler and they must be enclosed within /*, and */ symbols.
6. 'C’ is a case sensitive language.
   • uppercase (CAPITALS)
   • lowercase(small)