Examples
char letter;
int x, y;
int total = 0;
float scale_factor = 1.073f;
Key Points
- Variable definitions always start with the type of the variable
- Variable names can be constructed from upper or lower-case letters, digits and the underscore, but cannot start with a digit; punctuation and spaces are not permitted
- You are not required to supply an initial value for the variable; an uninitialized variable will have an unpredictable value that depends upon the existing bit pattern in the memory locations used by that variable
- Multiple variables of a given type can be defined in a single statement (such as
x and y in the examples above)
- Variable definitions can appear anywhere within a block of code and are local in scope to that block of code
