#list iterator

Write a program in java to prevent duplication from list?

import java.util.*; public class List {       public static void main(String arg[])       {             Scanner in=new Scanner(System.in);             ArrayList ls=new ArrayList();             int i=0;             while(i<5)             {                   System.out.print("Enter Name - ");                   String s=in.nextLine();                   if(true==ls.contains(s))           …

Write a program in java to demonstrate List Iterator?

import java.util.*; public class CollectionList {       public static void main(String arg[])       {             ArrayList ls=new ArrayList();             ls.add("Vikrant");             ls.add("Sunny");             ls.add("Kanir");             ls.add(1,"Abhinandan");             ls.add("Kundan");             System.out.println("Total Number of elements is "+ls.size());            …