Part of the language construct.

Integer

Float

Character

Double

Derived from the existing datatypes.

Array

Funtions

Pointer

Reference

Datatypes defined by the user.

Structure

Union

Enumeration

;,!?#$

Numeric Constants

Character Constants

May be varible or a function name or array varibale.

Operators operate on operands.

Arithmetic

Logical

Assignment

Conditional

Special

Increment / Decrement

Bitwise

Relational

precedence

example

automatic type

casting a value

#include<math.h> cc filename -lm

Input

Output

putchar

getchar

simple if

if else

nested if else

else if ladder

switch(exp){ case value1:block1; break; case value2:block2; break; ..........default:block; break; } statement-x;

conditional exp? exp1:true exp2:false

for(initialize ; test exp ; increment) { body; }

while(test exp) { body; }

do { body ; } while(test exp);

Declaring / Initialising

Reading

Writing