Queue using string array

Queue.java

import java.util.Scanner;

public class Queue {
    public int size;
    public int front = 0;
    public int rear = -1;
    public String[] queue;

    Queue(int size) {
        this.size = size;
        queue = new String[size];
    }

    public void enQueue(String data) {
        if (!isFull()) {
            queue[++rear] = data;
        } else {
            System.out.println("Queue is full.");
        }
    }

    public void deQueue() {
        if (isEmpty()) {
            System.out.println("Queue is empty");
            return;
        }

        for (int i=0; i<rear; i++) {
            queue[i] = queue[i + 1];
        }

        queue[rear--] = null;
    }

    public void print() {
        if (isEmpty()) {
            System.out.println("Queue is empty.");
            return;
        }

        for (int i = front; i <= rear; i++) {
            System.out.print(queue[i] + " ");
        }

        System.out.println();
    }

    public void peek() {
        System.out.println(queue[front]);
    }

    public boolean isEmpty() {
        return (rear < front);
    }

    public boolean isFull() {
        return (rear == size - 1);
    }

    public static void main(String[] args) {
        Scanner read = new Scanner(System.in);

        Queue myQ = new Queue(5);
        myQ.deQueue();

        for (int i=0; i<5; i++) {
            myQ.enQueue(read.nextLine());
        }

        myQ.peek();
        myQ.print();
        myQ.deQueue();
        myQ.print();

        for (int i=0; i<5; i++) {
            myQ.deQueue();
        }

        myQ.enQueue("hello");
        myQ.enQueue("world");

        myQ.print();
    }
}