what is an java iterator java interview question and answer

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What is an Iterator ?

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[mubarakabbas]

why the following code is not printing after the while loop

List<String> myArrayList = new ArrayList<>();
myArrayList.add("one");
myArrayList.add("two");

Iterator<String> iter = myArrayList.iterator();

while (iter.hasNext()) {

}



for(String n : myArrayList) {
System.out.println(n);
}

I am expecting result to be like..

testing
one
two