package devmanuals.com;

import java.util.Deque;
import java.util.Iterator;
import java.util.LinkedList;

public class DequeGetFirst {
	public static void main(String args[]) {
	Deque<Integer> dq = new LinkedList<Integer>();
	dq.add(1);
	dq.add(2);
	dq.add(3);
	dq.add(4);
	System.out.println("Is Deque empty : " + dq.isEmpty());
	System.out.println("Elements of Deque = " + dq);
	System.out.println("Size of Deque : " + dq.size());
	Object obj=dq.getFirst();
	System.out.println("Element at the first position is : "+obj);
	Iterator it =dq.iterator();
	while(it.hasNext()){
		dq.remove();
	}
	System.out.println("Is Deque empty : " + dq.isEmpty());
	// Here is the use of getFirst() method will display exception
	Object obj1=dq.getFirst();
	System.out.println(obj1);
	}
}