how to create Synchronized arraylist

Question

i have created synchronized arrayList like this

import java.text.SimpleDateFormat;
import java.util.*;


class HelloThread  
{

 int i=1;
 List arrayList;
           


        

Answer 1

You may not modify a Collection that you are iterating. You can work around this by accessing the array entries by index, not through an Iterator. I can provide more advice if you tell me the problem that you are trying to solve with this code.