ARRAY LIST DEMO

PHOTO

Wed May 29 2024 16:19:32 GMT+0000 (Coordinated Universal Time)

import java.util.*; 
 
public class ArrayListDemo 
{ 
 public static void main(String[] args) 
 { 
  ArrayList<String> al = new ArrayList<>(); 
   
  al.add("one"); al.add("two"); al.add("three"); al.add("four"); 
al.add("five"); 
  System.out.println("Contents: " + al); 
  System.out.println("Size: " + al.size()); 
  System.out.println(); 
   
  for(String s: al) 
   System.out.println(s); 
  System.out.println(); 
   
  for(int i=0; i<al.size(); i++) 
   System.out.println(al.get(i)); 
  System.out.println(); 
   
  Iterator it = al.iterator(); 
  ListIterator lit = al.listIterator(); 
  
  while(it.hasNext()) 
   System.out.println(it.next()); 
  System.out.println(); 
   
  while(lit.hasNext()) 
   System.out.println(lit.next()); 
  System.out.println(); 
   
  while(lit.hasPrevious()) 
   System.out.println(lit.previous()); 
  System.out.println(); 
     
  al.add(0, "zero"); 
  System.out.println("Contents: " + al); 
  System.out.println("Size: " + al.size()); 
   
  al.remove("one"); al.remove(0); 
  System.out.println("Contents: " + al); 
  System.out.println("Size: " + al.size()); 
   
 } 
}

COPY