structure
Class VectorIterator

java.lang.Object
  |
  +--structure.AbstractIterator
        |
        +--structure.VectorIterator

All Implemented Interfaces:

Enumeration, Iterator

class VectorIterator

extends AbstractIterator

A private class for implementing an iterator over a Vector.

Typical usage:

     import structure.Vector;
     import java.util.Iterator;
     public static void main(String[] args)
     {
         Vector argVec = new Vector();
         for (int i = 0; i < args.length; i++)
         {
             argVec.addElement(args[i]);
         }
         Iterator it = argVec.iterator();
         while (it.hasNext())
         {
             System.out.println(it.next());
         }
     }
 

Field Summary

protected int	current The index of the current value.
protected Vector	theVector The associated vector

Constructor Summary

VectorIterator(Vector v)
Construct a vector iterator to traverse vector v

Method Summary

Object	get() Fetch a reference to the current value.
boolean	hasNext() Determine if some of the elements have yet to be considered.
Object	next() Return current value, and increment iterator.
void	reset() Reset the vector iterator to the first value in the vector.

Methods inherited from class structure.AbstractIterator

hasMoreElements, nextElement, remove, value

Methods inherited from class java.lang.Object

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

Field Detail

theVector

protected Vector theVector

The associated vector

current

protected int current

The index of the current value.

Constructor Detail

VectorIterator

public VectorIterator(Vector v)

Construct a vector iterator to traverse vector v

Parameters:

v - The underlying vector.

Method Detail

reset

public void reset()

Reset the vector iterator to the first value in the vector.

Overrides:

reset in class AbstractIterator

Postcondition:

the iterator is reset to the beginning of the traversal

hasNext

public boolean hasNext()

Determine if some of the elements have yet to be considered.

Overrides:

hasNext in class AbstractIterator

Postcondition:

returns true if there is more structure to be traversed

Returns:

True if more elements are to be considered.

get

public Object get()

Fetch a reference to the current value.

Overrides:

get in class AbstractIterator

Precondition:

traversal has more elements

Postcondition:

returns the current value referenced by the iterator

Returns:

A reference to the current value being considered.

next

public Object next()

Return current value, and increment iterator.

Overrides:

next in class AbstractIterator

Precondition:

traversal has more elements

Postcondition:

increments the iterated traversal

Returns:

A reference to the current value, before increment.