"This is because a cascading if-else block will check
for each condition in each iteration until it reaches the correct
one. On the other hand, switch-case blocks are "supposed to" (why
supposed to, we'll see just now) just execute the correct statement
and move on. "Optimization Technique 1: Keep the case label values
close and small (Answer to "supposed to")
"Actually switch-case statements are also many times changed
into if-else cascades by the compilers. This happens when the case
label values are too far apart and/or are spread over a fairly
large range. If you have a small switch-case statement like below,
then the compiler will generate a jump-table instead of the if-else
cascade."
