Zoznam v Jave
Príklady kódu
zoznam v Jave
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());
}
}
zoznam v Jave
LIST: Can store duplicate values,
Keeps the insertion order.
It allows multiple null values,
Also we can read a certain value by index.
- ArrayList not syncronized, array based class
- LinkedList not synchronized, doubly linked
- Vector is synchronized, thread safe
ako vytvoriť zoznam java
//Creating arraylist example
ArrayList<String> list = new ArrayList<String>();
//Adding objects in arraylist
list.add("Mango");
list.add("Banana");
//Change the element (index,"new value")
list.set(1,"Dates");
//Return the 2nd element, because index starts from 0
System.out.println("Returning element: " + list.get(1)); Podobné stránky
Podobné stránky s príkladmi
V iných jazykoch
Táto stránka je v iných jazykoch
empty row
Русский
..................................................................................................................
English
..................................................................................................................
Italiano
..................................................................................................................
Polski
..................................................................................................................
Română
..................................................................................................................
한국어
..................................................................................................................
हिन्दी
..................................................................................................................
Français
..................................................................................................................
Türk
..................................................................................................................
Česk
..................................................................................................................
Português
..................................................................................................................
ไทย
..................................................................................................................
中文
..................................................................................................................
Español
..................................................................................................................
Балгарскі
..................................................................................................................
Íslensk
..................................................................................................................
Populárne v tejto kategórii
Populárne stránky s príkladmi v kategórii
empty row