package Example;
import java .util.LinkedList;
import java .util.Iterator;
public class LinklistExample {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		LinkedList Lst= new LinkedList(); // create object of LinkedList 
		
		// add elements to the LinkedList using add method 
		Lst.add("4");
		Lst.add("6");
		Lst.add("8");
		Lst.add("10");
		Lst.add("12");
		Lst.add("14");
		Lst.add("16");
		Lst.add("18");
		
		System.out.println("The elements of LinkedList prior to addition of other elemnts are:"+Lst);
		Lst.addFirst("2"); // add element at the first positionof linklist 
		System.out.println("After adding element at the first position linkedList is:"+Lst);
		Lst.addLast("20"); // add element at the last of linklist 
		System.out.println("after adding element Now the LinkedList contains:"+Lst);
		// now we want add element at specific position of index using add(int index,element) method
		Lst.add(5, "11");
		System.out.println(" after inserting specific element at specific position :" +Lst);
		// now we have to check the existence of the element in the LinkedList .we use contain(object o) method
		//it will shows the result in boolean value true/false 
		boolean blnExists=Lst.contains("14");
		System.out.println("The specific element is present in the LinkedList: "+blnExists);
	// now make this list empty
	//	Lst.clear();
		System.out.println("The linklist is empty:"+Lst.isEmpty());
		boolean obj =Lst.containsAll(Lst);
		System.out.println("The elements are present :"+obj);
		
		//To iterate throught the list in Descendin order
		Iterator itr = Lst.descendingIterator();
		System.out.println("The elements of LinkedList are in descending order:");
		while(itr.hasNext())
			System.out.println(itr.next());
		// To retrieve the first element of the list.use element().this retrieve the first element but not delete from the list. 
		Object obj1=Lst.element();
		System.out.println("The elements of linkedlist after retrievel:"+obj1);
		//to get the element at the specific positionof index
		//it will return the elemnt at the specific index
		Object obj2=Lst.get(6);
		System.out.println(" The element at the specific index:"+obj2);
		//To retrieve the element at the first position of the List
		Object obj3=Lst.getFirst();
		System.out.println("The element at the first position of the index is :"+obj3);
		// To retrieve the element at the last positionof the index
		Object obj4=Lst.getLast();
		System.out.println("The element at the last position of the index is :"+obj4);
		//To retrieve head of the List using peek() without removing it sismilarly used peekfirst() method to retrieve the element first element.
		Object obj5=Lst.peek();
		System.out.println("The head element of the index is :"+obj5);
		// to get Last element using peeklast()
		Object obj6=Lst.peekLast();
		System.out.println("The element at the last position of the index is :"+obj6);
//Pops an element from the stack represented by this list. In other words, removes and returns the first element of this list. 
        Object obj7=Lst.pop();
        System.out.println("The element retrieve and remove from the first position of the index is :"+obj7);
		//public E remove()
       // Retrieves and removes the head (first element) of this list. 
        Object obc=Lst.remove();
        System.out.println("The element retrieve and remove head of the index is :"+obc);
     //   public List<E> subList(int fromIndex,
 //               int toIndex)
//Returns a view of the portion of this list between the specified fromIndex, inclusive, and toIndex, exclusive
     Object sobj=Lst.set(2,4);
     System.out.println("The specific portion of the List is :"+sobj);
        
        
        // TODO Auto-generated method stub

	}

}