Package weka.core

Class Queue

  • All Implemented Interfaces:
    java.io.Serializable, RevisionHandler
    public class Queue
extends java.lang.Object
implements java.io.Serializable, RevisionHandler
    Class representing a FIFO queue.
    Version:
    $Revision: 1.10 $
    Author:
    Len Trigg (trigg@cs.waikato.ac.nz)
    See Also:
    Serialized Form

    • Constructor Summary

      Constructors 
      Constructor Description
      Queue()  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean empty()
      Checks if queue is empty.
      java.lang.String getRevision()
      Returns the revision string.
      static void main​(java.lang.String[] argv)
      Main method for testing this class.
      java.lang.Object peek()
      Gets object from the front of the queue.
      java.lang.Object pop()
      Pops an object from the front of the queue.
      java.lang.Object push​(java.lang.Object item)
      Appends an object to the back of the queue.
      void removeAllElements()
      Removes all objects from the queue m_Tail.m_Next.
      int size()
      Gets queue's size.
      java.lang.String toString()
      Produces textual description of queue.

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • Queue

        public Queue()

    • Method Detail

      • removeAllElements

        public final void removeAllElements()
        Removes all objects from the queue m_Tail.m_Next.

      • push

        public java.lang.Object push​(java.lang.Object item)
        Appends an object to the back of the queue.
        Parameters:
        item - the object to be appended
        Returns:
        the object appended

      • pop

        public java.lang.Object pop()
                     throws java.lang.RuntimeException
        Pops an object from the front of the queue.
        Returns:
        the object at the front of the queue
        Throws:
        java.lang.RuntimeException - if the queue is empty

      • peek

        public java.lang.Object peek()
                      throws java.lang.RuntimeException
        Gets object from the front of the queue.
        Returns:
        the object at the front of the queue
        Throws:
        java.lang.RuntimeException - if the queue is empty

      • empty

        public boolean empty()
        Checks if queue is empty.
        Returns:
        true if queue is empty

      • size

        public int size()
        Gets queue's size.
        Returns:
        size of queue

      • toString

        public java.lang.String toString()
        Produces textual description of queue.
        Overrides:
        toString in class java.lang.Object
        Returns:
        textual description of queue

      • getRevision

        public java.lang.String getRevision()
        Returns the revision string.
        Specified by:
        getRevision in interface RevisionHandler
        Returns:
        the revision

      • main

        public static void main​(java.lang.String[] argv)
        Main method for testing this class.
        Parameters:
        argv - a set of strings that are pushed on a test queue