Hello,

I am having issues displayed the queue. Its printing out 'Arrays@7d417077'. In Main class, when I call " System.out.println(queue);" it prints out Arrays@7d417077' instead of the input the user typed in. This also occurs when I dequeue the data.

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interface GenericQueue { void enqueue(T t); T dequeue(); boolean isEmpty(); boolean isFull(); int size();

}

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import java.lang.reflect.*;

public class Arrays implements GenericQueue {

private T elements[];

private int front, rear;

private int size, max;

Arrays(Class element, int max)

{

front =0;

rear = -1;

size = 0;

this.max = max;

elements = (T[])Array.newInstance(element, max);

}

@Override

public void enqueue(T t) {

if (rear == max - 1) {

int j = 0;

for (int i = front; i <= rear; i++)

{

elements[j++] = elements[i];

}

front = 0;

rear = size - 1;

}

elements[++rear] = t;

size++;

}

@Override

public T dequeue() {

T saved = elements[front];

elements[front] = null;

front++;

size--;

return saved;

}

@Override

public boolean isEmpty() {

return(size == 0);

}

@Override

public boolean isFull() {

return size == max;

}

@Override

public int size() {

return size;

}

}

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import java.util.ArrayList;

import java.util.List;

import java.util.Scanner;

public class Main {

public static void showMainMenu (GenericQueue queue) {

Scanner scan = new Scanner(System.in);

System.out.println("Please Enter the following selections");

System.out.println("1. Enqueue ");

System.out.println("2. Dequeue ");

System.out.println("0. Quit");

String choice = scan.nextLine();

while (true)

{

switch (choice) {

case "":

showMainMenu(queue);

break;

case "0":

System.exit(0);

break;

case "1":

Add(queue, choice);

break;

case "2":

Remove(queue, choice);

break;

default: showMainMenu(queue);

break;

}

}

}

public static void Add (GenericQueue queue, String n)

{

T name;

T lastname;

T title;

T id;

Scanner scan = new Scanner(System.in); // creates scanner

//LinkedQueue queue = new LinkedQueue(); // declares linkedlist

/** Add names **/

System.out.println(" Enter the first and last name of the Employee:" );

name = (T) scan.next();

while(!((String) name).matches("[a-zA-Z]+"))

{

System.out.println(" Invalid first name: Enter a valid first name" );

name = (T) scan.next();

}

queue.enqueue(name);

lastname = (T) scan.next();

queue.enqueue(lastname);

System.out.println(" Enter the job title of the Employee:" );

title = (T) scan.next();

while(!((String) title).matches("[a-zA-Z]+"))

{

System.out.println(" Invalid first name: Enter a valid first name" );

title = (T) scan.next();

}

queue.enqueue(title);

System.out.println(" Enter the ID of the Employee:" );

id = (T) scan.next();

queue.enqueue(id);

System.out.println(" You added Employee: ");

System.out.println(queue);

showMainMenu(queue);

}

public static void Remove (GenericQueue queue, String n)

{

try {

queue.dequeue();

queue.dequeue();

queue.dequeue();

queue.dequeue();

System.out.println(" Employee list is Dequeue: ");

System.out.println(queue);

showMainMenu(queue);

}catch(QueueException ex) {

System.out.println(" There are no Employee in the database to Dequeue " + " Please enter in Employee information:");

Add(queue, n);

}

}

public static void main(String[] args) {

Scanner scan = new Scanner(System.in);

GenericQueue queue = new Arrays(String.class, 4);

System.out.println("Please Enter the following selections");

System.out.println("1. Enqueue");

System.out.println("2. Dequeue");

System.out.println("0. Quit");

String choice = scan.nextLine();

String name = null;

while (true) {

switch (choice) {

case "":

showMainMenu(queue);

break;

case "0":

System.exit(0);

break;

case "1":

Add(queue,name);

break;

case "2":

Remove(queue, name);

break;

default: showMainMenu(queue);

break;

}

}

}

}

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public class QueueException extends RuntimeException {

}