Lists inside lists in java
public class GuiTest {
public static void main(String[] args) {
List<List<Integer>> MainList = new ArrayList<List<Integer>>();
Random NewRandomNumber = new Random();
for (int i = 0; i < 10; i++) {
List<Integer> SecondList = new ArrayList<Integer>();
MainList.add(SecondList);
for (int i2 = 0; i2 < 10; i2++) {
SecondList.add(NewRandomNumber.nextInt(6));
}
}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<String> 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]
}
}java list of objects example
List<Object> listAnything = new ArrayList<Object>();
List<String> listWords = new ArrayList<String>();
List<Integer> listNumbers = new ArrayList<Integer>();
List<String> linkedWords = new LinkedList<String>();list of lists java
List<ArrayList<String>> listOfLists = new ArrayList<ArrayList<String>>();java list
import java.util.*;
var list = new ArrayList<String>();
list.add("Hello World!");Copyright © 2021 Codeinu
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