Iterate Over Unmodifiable Collection - Java Collection Framework

Java examples for Collection Framework:Immutable

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Description

Iterate Over Unmodifiable Collection

Demo Code


import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
 
public class Main {
 
  public static void main(String args[]) {
    List<String> list = new ArrayList<String>();
 
    list.add("This");
    list.add("is");
    list.add("Unmodifiable Collection");
 
    System.out.println("Element added to list: " + list.get(2));
 
    Collection<String> immutableCol = Collections.unmodifiableCollection(list);
 
    Iterator<String> iterator = immutableCol.iterator();
 
    while(iterator.hasNext())
    {/*ww w . j av  a  2 s  .  c o  m*/
       System.out.println(iterator.next());
    }
  }
}

Result


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