Have 2 classes in the program. Please help with how to fix the code so the class need to be generic:

Class #1

public class QueueNode {

int data;

QueueNode next;

public QueueNode(int data) {

this.data = data;

}

void Next(QueueNode next) {

this.next = next;

}

}

Class #2

import java.util.Random;

public class Queue{

static QueueNode head;

static QueueNode tail;

public static void main(String args[]) {

Random value = new Random();

int upperBounded = 27;

head = new QueueNode(value.nextInt(upperBounded));

tail = head;

tail.Next(null);

int t = 0;

while (t < 1000) {

double m = Math.random();

int int_value = (int)(m * 100) % 2;

if (int_value == 0) {

int random_value = value.nextInt(upperBounded);

Enqueue(random_value);

System.out.println("Enqueue(" + random_value + ")");

}

else {

if (!empty()) {

System.out.println("Dequeue() = " + Dequeue());

}

else {

System.out.println("Dequeue - failed (queue empty).");

}

}

t ++;

}

}

public static void Enqueue(int a) {

QueueNode node = new QueueNode(a);

node.Next(null);

if (head == null) {

head = node;

tail = node;

}

else if (tail != null) {

tail.next = node;

tail = node;

}

}

public static int Dequeue() {

int a = head.data;

head = head.next;

return a;

}

static boolean empty() {

if (head == null) {

return true;

}

else {

return false;

}

}

}