Identifiers :
- Names given to various program elements.
- May consist letter , digits and underscore character , with no space between .
- First Character Must be Letter.
- Case Sensitive
Keywords :
- Reserved Words that have standard , predefined meaning in C.
- Cannot be used as identifiers
- Ok within Comments
Standard C Keywords :
auto break case char const continue double else enum extern float for int long register return return short unsigned struct switch typedef union unsigned void default do goto if sizeof static volatile while
VALID IDENTIFIERS INVALID IDENTIFIERS
X 10 abc
abc my-name
Simple_interest "hello"
LIST (area)
Stud_name %rate
Stud_name %rate
Empl_1
avg_empl_salary
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