Nested List Iterator. Program doesn't terminates

Question

Below is my program.

public class NewClass {
    public static void main(String[] args) {
        List<String> cars = new ArrayList<String>();
        cars.add("Maruti");
        cars.add("Hundai");
        cars.add("Polo");
        Iterator<String> literate1 =  cars.iterator();
        while (literate1.hasNext()){
            System.out.println(literate1.next());
            literate1.remove();
            Iterator<String> literate2 =  cars.iterator();
            while (literate2.hasNext()){
            }
        }
    }
}

Output

Maruti

Just after printing this result, program doesn't terminates. Can you explain what is going on?

Answer 1

literate2.hasNext() always returns true. So while loop will never end.

Answer 2

Please check the below code. It will work.

List<String> cars = new ArrayList<String>();
cars.add("Maruti");
cars.add("Hundai");
cars.add("Polo");
Iterator<String> literate1 =  cars.iterator();
while (literate1.hasNext()) {
    System.out.println(literate1.next());
}

In your code, the inner while loop has the condition literate2.hasNext(). It's actually returning true all the time. For that reason, it's creating an infinite loop.