Which of these pieces of code is faster in Java?

Question

a) for(int i = 100000; i > 0; i--) {}

b) for(int i = 1; i < 100001; i++) {}

The answer is t

Answer 1

With regards for testing for zero in the JVM: it can apparently be done with ifeq whereas testing for anything else requires if_icmpeq which also involves putting an extra value on the stack.

Testing for > 0, as in the question, might be done with ifgt, whereas testing for < 100001 would need if_icmplt.