Java for loop vs. while loop. Performance difference?

Question

Assume i have the following code, there are three for loop to do something. Would it run fast if i change the most outer for loop to while loop? thanks~~

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Answer 1

you cant optimize it by changing it to while.

you can just increment speed very very very very little by changing the line

for (int k = 0; k < length - 1; k++) {

by

for (int k = 0; k < lengthMinusOne; k++) {

where lengthMinusOne is calculated before

this subtraction is just calculating almost (200x201/2) x (200-1) times and it is very little number for computer :)