Print Middle Element of Linked List Using Size

package org.wesome.dsalgo;

import lombok.Data;

import java.util.Objects;

public class LinkedList {
    static Node head;
    static int size = 0;

    static void printMiddleUsingSize() {
        System.out.println("LinkedList.printMiddleUsingSize");
        int midIndex = size / 2;
        System.out.print("midIndex " + midIndex);
        Node node = head;
        while (midIndex != 0) {
            node = node.next;
            midIndex--;
        }
        System.out.println(" middle element is " + node.data);
//        for even size, we need to print both n and n+1, but since list starts from 0, to properly calculate the n, we need to add 1 in size first
        if (((size + 1) % 2 == 0)) {
            System.out.println("middle element is " + node.next.data);
        }
    }

    //this method print the list using loop
    static void printIteratively() {
        System.out.println("LinkedList.printIteratively");
        if (Objects.isNull(head)) {
            System.out.println("Linked List is null = " + head);
            return;
        }
        Node tempNode = head;
        System.out.println("Linked List Size is " + size);
        while (Objects.nonNull(tempNode)) {
            System.out.println("Node = " + tempNode.data);
            tempNode = tempNode.next;
        }
    }

    static void addInLast(int element) {
        System.out.println("\nLinkedList.addInLast " + element);
        Node newNode = new Node(element);
        if (Objects.isNull(head)) {
            head = newNode;
            return;
        }
        Node tempNode = head;
        while (Objects.nonNull(tempNode.next)) {
            tempNode = tempNode.next;
        }
        tempNode.next = newNode;
        size++;
    }
}

@Data
class Node {
    int data;
    Node next;

    public Node(int data) {
        this.data = data;
    }
}

package org.wesome.dsalgo;

import org.junit.jupiter.api.Test;

import static org.wesome.dsalgo.LinkedList.printIteratively;
import static org.wesome.dsalgo.LinkedList.printMiddleUsingSize;

public class LinkedListTest {
    @Test
    void printMiddleUsingSizeTest() {
        addInLast();
        printIteratively();
        printMiddleUsingSize();
    }

    void addInLast() {
        LinkedList.addInLast(1);
        LinkedList.addInLast(2);
        LinkedList.addInLast(3);
        LinkedList.addInLast(4);
        LinkedList.addInLast(5);
    }
}

plugins {
    id 'java'
    id "io.freefair.lombok" version "6.2.0"
}

group = 'org.wesome'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = JavaVersion.VERSION_1_8

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
}

dependencies {
    testImplementation 'org.junit.jupiter:junit-jupiter:5.6.2'
}

test {
    useJUnitPlatform()
}