Conditional and Ternary Operator 

It is sometimes called ternary operator because it takes three operands in the operation. The expression syntax is:

(Conditional Expression) ? (Expression1) : (Expression2);

If the conditional expression is evaluated to true (if its value is non-zero) then the expression1 is executed otherwise expression2 is executed.

Example:

                                                int x,y;

                                                scanf("%d",&x);

                                                y=(x>5?3:4);

The last statement will store 3 in variable y if x is greater than 5, otherwise 4 in y. It is not necessary that the conditional operator should be used only in arithmetic statements, they can also be used with other statements as printf().

Example              

                                                (i= =1) ? printf("RAM") : printf("MOHAN");

The conditional operator can also be nested.

Example              

                                                big = (a > b ? (a > c ? a : c) : (b > c ? b : c ));