add element to list java code example
Example 1: java append to list
package com.journaldev.examples;
import java.util.ArrayList;
import java.util.List;
public class ListAddExamples {
public static void main(String[] args) {
List vowels = new ArrayList<>();
vowels.add("A"); // [A]
vowels.add("E"); // [A, E]
vowels.add("U"); // [A, E, U]
System.out.println(vowels); // [A, E, U]
vowels.add(2, "I"); // [A, E, I, U]
vowels.add(3, "O"); // [A, E, I, O, U]
System.out.println(vowels); // [A, E, I, O, U]
}
}
Example 2: java add a list to a list
List mylist.addAll(secondList);
Example 3: how to add a list in a list java
List list = new ArrayList();
List anotherList = new ArrayList();
anotherList.add(list);