Conditional Operator is an operator which is substitutive for if-else statements. It is a ternary operator (operator which operates on 3 operands). It is often called ?: operator. The operands are
expression1,
expression2 and
expression3. The syntax is as follows:
expression1 ? expression2 : expression3
The expression
expression1 will be evaluated always. Execution of
expression2 and
expression3 depends on the outcome of
expression1.
expression1 is checked whether true or not. It is considered like a boolean variable. The outcome of an expression is true if it has a non zero value. If its value is zero, the outcome of expression is false. If the
expression1 is true, then
expression2 is evaluated. If the
expression1 is false, then
expression3 is evaluated. Consider the following example: