why can i make a decision with switch statement

Answer 1

yes u can
switch(condition){
case 'a' : desicion1;
break;
case 'b' : desicion2;
break;
}

Answer 2

when we have one condition with more than two cases let say we have var X switch is easy to implemented it's say in case x= something do that. simply switch can make more one compare unlike if statement and it's fast in compiling unlike if too. hope that's help.