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));
}
}list in java
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.ListIterator;
public class Main {
public static void main(String[] args) {
List<String> list = new ArrayList<String>();
list.add("a");
list.add("b");
list.add("c");
list.add("d");
list.add("e");
list.add("f");
//On met la liste dans le désordre
Collections.shuffle(list);
System.out.println(list);
//On la remet dans l'ordre
Collections.sort(list);
System.out.println(list);
Collections.rotate(list, -1);
System.out.println(list);
//On récupère une sous-liste
List<String> sub = list.subList(2, 5);
System.out.println(sub);
Collections.reverse(sub);
System.out.println(sub);
//On récupère un ListIterator
ListIterator<String> it = list.listIterator();
while(it.hasNext()){
String str = it.next();
if(str.equals("d"))
it.set("z");
}
while(it.hasPrevious())
System.out.print(it.previous());
}
}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!");java list of lists
ArrayList<ArrayList<String>> listOLists = new ArrayList<ArrayList<String>>();
ArrayList<String> singleList = new ArrayList<String>();
singleList.add("hello");
singleList.add("world");
listOLists.add(singleList);
ArrayList<String> anotherList = new ArrayList<String>();
anotherList.add("this is another list");
listOLists.add(anotherList);Copyright © 2021 Codeinu
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