Adding and removing element in an ArrayList while iterating using Iterator

 

import java.util.*;

public class AddRemoveUsingItrInArrayList {

public static void main(String[] args) {

ArrayList<String> al = new ArrayList<>();

al.add("Ajay");

al.add("Vijay");

al.add("Krishna");

al.add("Kiyan");

al.add("Nishu");

Iterator<String> itr = al.iterator();

//This will show an error

//cannot add an element using iterator

//al.add("Neelam");

while (itr.hasNext()) {

String s = itr.next();

if (s.equals("Kiyan")) {

itr.remove(); //Any element can be delete using iterator in an ArrayList

}

}

System.out.println(al);

}

}