How do I remove the first and last item from LinkedList?

To remove the first or the last elements from the linked list we can use the removeFirst() and removeLast() methods provided by the LinkedList class.

package org.kodejava.example.swing;

import java.util.LinkedList;

public class LinkedListRemoveItems {
    public static void main(String[] args) {
        LinkedList grades = new LinkedList();
        grades.add("A");
        grades.add("B");
        grades.add("C");
        grades.add("D");
        grades.add("E");
        grades.add("F");

        System.out.println("Original values are:");
        System.out.println("====================");
        for (String grade : grades) {
            System.out.println("Grade: " + grade);
        }

        grades.removeFirst();
        grades.removeLast();

        System.out.println("New values are:");
        System.out.println("====================");
        for (String grade : grades) {
            System.out.println("Grade: " + grade);
        }
    }
}

This program print out the following result:

Original values are:
====================
Grade: A
Grade: B
Grade: C
Grade: D
Grade: E
Grade: F
New values are:
====================
Grade: B
Grade: C
Grade: D
Grade: E

Wayan

Programmer, runner, recreational diver, live in the island of Bali, Indonesia. Mostly programming in Java, creating web based application with Spring Framework, Hibernate / JPA.

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