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Java LinkedList Object pop() method with Example

Java LinkedList Object pop() method: Here, we are going to learn about the Object pop() method of LinkedList class with its syntax and example.
Submitted by Preeti Jain, on June 24, 2019

LinkedList Object pop() method

• This method is available in package java.util.LinkedList.pop().
• This method is used to delete or remove or return or pop an object at the top of the stack(initial or first position) represented by the linked list.
• This method is equivalent to remove() or removeFirst() of the LinkedList.
• This method will throw an exception if List is empty.

Syntax:

    Object pop(){
    }

Parameter(s):

We don't pass any object as a parameter in the method of the linked list.

Return value:

The return type of this method is Object that means this method returns Object (i.e. it return the top element of the stack represented by the LinkedList).

Java program to demonstrate example of LinkedList pop() method

import java.util.LinkedList;

public class LinkList {
    public static void main(String[] args) {
        LinkedList list = new LinkedList();
        // use add() method to add elements in the list 
        list.add("J");
        list.add("A");
        list.add("V");
        list.add("A");

        //  Current list Output
        System.out.println("The Current list is:" + list);

        //  Remove or Pop first element from the linked list 
        // and new list output after implementing pop()
        System.out.println("The new List after pop() method is:" + list.pop());
    }
}

Output

D:\Programs>javac LinkList.java

D:\Programs>java LinkList
The Current list is:[J, A, V, A]
The new List after pop() method is:J