Java for( x : y) execution

Question

I have the following for loop:

for(String s : someString.split("\\s+")){
   //do something
}

Does java execute the split() method each time the loop iterates, or does it do it only once and keep a temp array to iterate on?

Answer 1

It only does it once, and uses that array and interates through it.

Edit: from Mat This is the reference