Poll, pop and push element to a LinkedList

ReturnMethodSummary
Epoll()Retrieves and removes the head (first element) of this list
EpollFirst()Retrieves and removes the first element of this list, or returns null if this list is empty.
EpollLast()Retrieves and removes the last element of this list, or returns null if this list is empty.
Epop()Pops an element from the stack represented by this list.
voidpush(E e)Pushes an element onto the stack represented by this list.

  import java.util.LinkedList;

public class Main{
    public static void main(String args[]) {
        LinkedList<String> ll = new LinkedList<String>();

        ll.add("A");
        ll.add("java2s.com");
        ll.add("B");
        ll.add("C");
        ll.add("java2s.com");


        String str = ll.poll();
        System.out.println(str);
        System.out.println(ll);
    }
}
  

The output:


A
[java2s.com, B, C, java2s.com]

  import java.util.LinkedList;

public class Main{
    public static void main(String args[]) {
        LinkedList<String> ll = new LinkedList<String>();

        ll.add("A");
        ll.add("java2s.com");
        ll.add("B");
        ll.add("C");
        ll.add("java2s.com");


        String str = ll.pollLast();
        System.out.println(str);
        System.out.println(ll);
    }
}
  

The output:


java2s.com
[A, java2s.com, B, C]
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