arraylists.java

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

public class UsefulCodes {

 // ArrayLists
  public static List<String> listeler(int a){
   String[] words2={"eggs","lazers","hats","pie"};
   String[] words3={"lazers","hats"};
   
   List<String> list = new ArrayList<>();
   List<String> list2 = new ArrayList<>();
   
   //add array items to the list
   for(String x: words2)
    list.add(x);
   
   for(String y: words3)
    list2.add(y);
   
   if(a==1)return list;
   else return list2;
  }

 //editList
  public static void editList(Collection<String> l1, Collection<String> l2){
   
   Iterator<String> it = l1.iterator();
   while(it.hasNext()){
    if(l2.contains(it.next()))
     it.remove();
   }
    System.out.println(l1.toString());
    
  }

 // Main Method
 public static void main(String[] args) {
       // Compares 2 lists and excludes the identical elements //from the first list
  editList(listeler(1),listeler(2));
 }
 }