Java Collection Tutorial - Java ArrayBlockingQueue .drainTo (Collection <? super E > c, int maxElements)

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Syntax

ArrayBlockingQueue.drainTo(Collection <? super E > c, int maxElements) has the following syntax.

public int drainTo(Collection <? super E > c,  int maxElements)

Example

In the following code shows how to use ArrayBlockingQueue.drainTo(Collection <? super E > c, int maxElements) method.

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ArrayBlockingQueue;
//  w ww  .  ja  v  a 2s . co  m
public class Main {
  public static void main(String[] argv) throws Exception {
    List<Integer> list = new ArrayList<Integer>();
    
    
    int capacity = 100;
    ArrayBlockingQueue<Integer> queue = new ArrayBlockingQueue<Integer>(capacity);
    queue.put(0);
    queue.put(1);
    queue.put(2);
    queue.drainTo(list,3);
    System.out.println(queue);
    System.out.println(list);
  }
}

The code above generates the following result.

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