Java Collection Tutorial - Java LinkedList.addAll(Collection <? extends E > c)

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Syntax

LinkedList.addAll(Collection <? extends E > c) has the following syntax.

public boolean addAll(Collection <? extends E> c)

Example

In the following code shows how to use LinkedList.addAll(Collection <? extends E > c) method.

import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedList;
//ww  w . j  a va 2 s.  c  o  m
public class Main {

   public static void main(String[] args) {

      // create a LinkedList
      LinkedList<String> list = new LinkedList<String>();

      // add some elements
      list.add("Hello");
      list.add("from java2s.com");
      list.add("10");

      // print the list
      System.out.println("LinkedList:" + list);


      // create a new collection and add some elements
      Collection collection = new ArrayList();
      collection.add("One");
      collection.add("Two");
      collection.add("Three");

      // append the collection in the LinkedList
      list.addAll(collection);

      // print the new list
      System.out.println("LinkedList:" + list);
   }
}

The code above generates the following result.

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