Does the order of case in Switch statement can vary the performance?
- by Bipul
Let say I have a switch statement as below
Switch(alphabet){
case "f":
//do something
break;
case "c":
//do something
break;
case "a":
//do something
break;
case "e":
//do something
break;
}
Now suppose I know that the frequency of having Alphabet e is highest followed by a, c and f respectively. So, I just restructured the case statement order and made them as follows.
Switch(alphabet){
case "e":
//do something
break;
case "a":
//do something
break;
case "c":
//do something
break;
case "f":
//do something
break;
}
Will the second Switch statement better perform(means faster) than the first switch statement? If yes and if in my program I need to call this switch statement say many times, will that be a substantial improvement? Or if not in any how can I use my frequency knowledge to improve the performance?
Thanks
