Basic Rules for programming

Before we move further , let us see some of the rules that are applicable to all C programs:

1. Each instruction in a C program is written as a separate statement. Therefore, a complete C program would comprise a series of statements.
2. The statement in a program must appear in the same order in which we wish them to be executed; unless of course the logic of the problem demands a deliberate 'jump' or transfer of control to a statement, which is out of sequence.
3. Blank spaces may be inserted between two words to improve the readability of the statement. However, no blank spaces are allowed within a variable, constant or keyword.
4. All statement are entered in small case letters.
5. C has no specific rules for the position at which a statement is to be written. That's why it is often called a free-form language.
6. Every C statement must end with a ; . Thus ; acts as a statement terminator.