Queue (jltk-master)

java.lang.Object
- jltk.struc.Queue<ContentType>

```
public class Queue<ContentType>
extends Object
```
The generic class Queue is a linear data structure that stores elements in a FIFO (First In, First Out) order. Elements a added at the end of the queue and removed from the front.

Version:

23.08.2022

Author:

ms

Field Summary

Fields
Modifier and Type Field Description

(package private) jltk.struc.Queue.Node<ContentType> head

String separator

(package private) jltk.struc.Queue.Node<ContentType> tail

Constructor Summary

Constructors
Constructor Description

Queue()
Objects managed by this queue must be of type ContentType

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`dequeue()`	Remove the first node from queue.
`void`	`enqueue(ContentType pContent)`	The specified content of type ContentType is append to this queue.
`ContentType`	`front()`	Return the content of the first node.
`boolean`	`isEmpty()`	Return true, if the queue is empty, else true,
`String`	`toString()`	Return the string representation of this queue.

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - head
```
jltk.struc.Queue.Node<ContentType> head
```
  - tail
```
jltk.struc.Queue.Node<ContentType> tail
```
  - separator
```
public String separator
```
- Constructor Detail
  - Queue
```
public Queue()
```
    Objects managed by this queue must be of type ContentType
- Method Detail
  - enqueue
```
public void enqueue(ContentType pContent)
```
    The specified content of type ContentType is append to this queue. If pContent is null, othing happen.
    
    Parameters:
    
    pContent - The new content.
  - dequeue
```
public void dequeue()
```
    Remove the first node from queue.
  - front
```
public ContentType front()
```
    Return the content of the first node. If the queue is empty will return null.
    
    Returns:
    
    The content of the first node.
  - isEmpty
```
public boolean isEmpty()
```
    Return true, if the queue is empty, else true,
    
    Returns:
    
    true, if this queue is empty, else false.
  - toString
```
public String toString()
```
    Return the string representation of this queue. To represent an element, the toString() method pf the content is used. Each element is seperated by a semicolon. You can change the seperator by changing the attribut separator.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    The string representation of this queue.