how to make an array of arraylists in java
ArrayList<Integer> [] myList = (ArrayList<Integer>[]) new ArrayList[4];how to make an array of arraylists in java
ArrayList<Integer> [] myList = (ArrayList<Integer>[]) new ArrayList[4];arraylist of arraylist
public static void main(String[] args) {
ArrayList<ArrayList<Integer>> outer = new ArrayList<ArrayList<Integer>>();
ArrayList<Integer> inner = new ArrayList<Integer>();
inner.add(100);
inner.add(200);
outer.add(inner); // add first list
inner = new ArrayList<Integer>(inner); // create a new inner list that has the same content as
// the original inner list
outer.add(inner); // add second list
outer.get(0).add(300); // changes only the first inner list
System.out.println(outer);
}Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
