LinkedList push and pop methods

Adding and removing element in LinkedList can also be done by push and pop methods.

1. void push(E e) – Adds an element into the List as the first element

2. E pop() – Removes the first element of the list.

Lets see some examples on LinkedList push and pop methods.

package com.kscodes.collections.linkedList;

import java.util.LinkedList;

public class LinkedListPushPop {

public static void main(String[] args) {

LinkedList<String> linkedList = new LinkedList<>();

// Use add(E e) to add elements

linkedList.add("Java");

linkedList.add("JSP");

linkedList.add("Spring MVC");

System.out.println("****LinkedList elements :: " + linkedList.toString());

// Use push to add one more element.

// This will get added at the top - as first element

linkedList.push("Hibernate");

System.out.println("****LinkedList elements after push :: " + linkedList.toString());

// Use pop to remove a element

// This will remove the first element - "Hibernate"

linkedList.pop();

System.out.println("****LinkedList elements after pop :: " + linkedList.toString());

}

****LinkedList elements :: [Java, JSP, Spring MVC]

****LinkedList elements after push :: [Hibernate, Java, JSP, Spring MVC]

****LinkedList elements after pop :: [Java, JSP, Spring MVC]

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