LOLWTFasdasd asdad LOLWTFasdasd asdad - 1 year ago 49
Java Question

In Java, is a while(true) behaving equally as an endless for-loop?

Do the following loops behave the same in terms of speed & CPU usage:

Loop 1


Loop 2

for(int i = 0; i != -1 ; i++) {}

Are there any differences or is it basically the same code in 2 different expressions?

Answer Source

These two loops are not the same:

  • The first loop will never stop
  • The second loop will run for a long time, until i overflows, at which point the loop will exit.

Given that these two loops are not the same, the byte code, CPU usage, and speed for each would be different as well.

Recommended from our users: Dynamic Network Monitoring from WhatsUp Gold from IPSwitch. Free Download