java add a list to a list

1package com.journaldev.examples;
2
3import java.util.ArrayList;
4import java.util.List;
5
6public class ListAddExamples {
7
8	public static void main(String[] args) {
9
10		List<String> vowels = new ArrayList<>();
11
12		vowels.add("A"); // [A]
13		vowels.add("E"); // [A, E]
14		vowels.add("U"); // [A, E, U]
15
16		System.out.println(vowels); // [A, E, U]
17
18		vowels.add(2, "I"); // [A, E, I, U]
19		vowels.add(3, "O"); // [A, E, I, O, U]
20
21		System.out.println(vowels); // [A, E, I, O, U]
22	}
23}

1List<String> newList = Stream.concat(listOne.stream(), listTwo.stream())
2                             .collect(Collectors.toList());

1List<SomePojo> list = new ArrayList<SomePojo>();
2
3List<SomePojo> anotherList = new ArrayList<SomePojo>();
4anotherList.add(list);

1List mylist.addAll(secondList);