While loop, For loop and Iterator Performance Test - Java

While loop, For loop and Iterator Performance Test – Java

Well... the result show that the Iterator mechanism is the slowest method to loop through a list. There's not much performance different between For and While loop.

Iterator provides a very handy way to loop through a list or collection, but it is slower than For and While loop. Please be remind that the different is just in milliseconds (not even 1 second for 15 millions of data looping). So, just choose any looping mechanism you want, there's not much different.

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