Why iterator doesn't have any reset method?

Question

Why? And what the best way to move iterator items pointer to the first position?

Answer 1

Tip: create your iterator variable as a function instead, then you can consume it as many times are you want. This only works if the underlying logic is repeatable.

Example in Scala (Java similar but I don't have a Java REPL handy)

def i = (1 to 100) iterator   // i is our iterator
i.grouped(50) foreach println // prints two groups
i.grouped(50) foreach println // prints same two groups again