import java.util.LinkedList;
import java.util.Queue;

/**
 *
 * @author outofmemory.cn
 */
public class Main {

    /**
     * Example method for using a Queue
     */
    public void queueExample() {

        Queue queue = new LinkedList();

        //Using the add method to add items.
        //Should anything go wrong an exception will be thrown.
        queue.add("item1");
        queue.add("item2");

        //Using the offer method to add items.
        //Should anything go wrong it will just return false
        queue.offer("Item3");
        queue.offer("Item4");

        //Removing the first item from the queue.
        //If the queue is empty a java.util.NoSuchElementException will be thrown. 
        System.out.println("remove: " + queue.remove());

        //Checking what item is first in line without removing it
        //If the queue is empty a java.util.NoSuchElementException will be thrown. 
        System.out.println("element: " + queue.element());

        //Removing the first item from the queue.
        //If the queue is empty the method just returns false. 
        System.out.println("poll: " + queue.poll());

        //Checking what item is first in line without removing it
        //If the queue is empty a null value will be returned. 
        System.out.println("peek: " + queue.peek());

    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Main().queueExample();
    }
}
//java/6683