switch(expression) {
case constant-expression :
statement(s);
break; /* optional */
case constant-expression :
statement(s);
break; /* optional */
/* you can have any number of case statements */
default : /* Optional */
statement(s);
}switch (expression) {
case constant1:
// statements
break;
case constant2:
// statements
break;
default:
// default statements
}