Package antlr.collections.impl

Class LList

  • All Implemented Interfaces:
    List, Stack
    public class LList
extends java.lang.Object
implements List, Stack
    A Linked List Implementation (not thread-safe for simplicity) (adds to the tail) (has an enumeration)

    • Constructor Summary

      Constructors 
      Constructor Description
      LList()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void add​(java.lang.Object o)
      Add an object to the end of the list.
      void append​(java.lang.Object o)
      Append an object to the end of the list.
      protected java.lang.Object deleteHead()
      Delete the object at the head of the list.
      java.lang.Object elementAt​(int i)
      Get the ith element in the list.
      java.util.Enumeration elements()
      Return an enumeration of the list elements
      int height()
      How high is the stack?
      boolean includes​(java.lang.Object o)
      Answers whether or not an object is contained in the list
      protected void insertHead​(java.lang.Object o)
      Insert an object at the head of the list.
      int length()
      Return the length of the list.
      java.lang.Object pop()
      Pop the top element of the stack off.
      void push​(java.lang.Object o)
      Push an object onto the stack.
      java.lang.Object top()  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • length

        protected int length

    • Constructor Detail

      • LList

        public LList()

    • Method Detail

      • add

        public void add​(java.lang.Object o)
        Add an object to the end of the list.
        Specified by:
        add in interface List
        Parameters:
        o - the object to add

      • append

        public void append​(java.lang.Object o)
        Append an object to the end of the list.
        Specified by:
        append in interface List
        Parameters:
        o - the object to append

      • deleteHead

        protected java.lang.Object deleteHead()
                               throws java.util.NoSuchElementException
        Delete the object at the head of the list.
        Returns:
        the object found at the head of the list.
        Throws:
        java.util.NoSuchElementException - if the list is empty.

      • elementAt

        public java.lang.Object elementAt​(int i)
                           throws java.util.NoSuchElementException
        Get the ith element in the list.
        Specified by:
        elementAt in interface List
        Parameters:
        i - the index (from 0) of the requested element.
        Returns:
        the object at index i NoSuchElementException is thrown if i out of range
        Throws:
        java.util.NoSuchElementException

      • elements

        public java.util.Enumeration elements()
        Return an enumeration of the list elements
        Specified by:
        elements in interface List

      • height

        public int height()
        How high is the stack?
        Specified by:
        height in interface Stack

      • includes

        public boolean includes​(java.lang.Object o)
        Answers whether or not an object is contained in the list
        Specified by:
        includes in interface List
        Parameters:
        o - the object to test for inclusion.
        Returns:
        true if object is contained else false.

      • insertHead

        protected void insertHead​(java.lang.Object o)
        Insert an object at the head of the list.
        Parameters:
        o - the object to add

      • length

        public int length()
        Return the length of the list.
        Specified by:
        length in interface List

      • pop

        public java.lang.Object pop()
                     throws java.util.NoSuchElementException
        Pop the top element of the stack off.
        Specified by:
        pop in interface Stack
        Returns:
        the top of stack that was popped off.
        Throws:
        java.util.NoSuchElementException - if the stack is empty.

      • push

        public void push​(java.lang.Object o)
        Push an object onto the stack.
        Specified by:
        push in interface Stack
        Parameters:
        o - the object to push

      • top

        public java.lang.Object top()
                     throws java.util.NoSuchElementException
        Specified by:
        top in interface Stack
        Throws:
        java.util.NoSuchElementException