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MID Profile: Class Vector
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java.util</FONT>
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Class Vector</H2>
<PRE>
<A HREF="../../java/lang/Object.html">java.lang.Object</A>
|
+--<B>java.util.Vector</B>
</PRE>
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<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../java/util/Stack.html">Stack</A></DD>
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<DL>
<DT>public class <B>Vector</B><DT>extends <A HREF="../../java/lang/Object.html">Object</A></DL>
<P>
The <code>Vector</code> class implements a growable array of objects. Like an array, it contains components that can be accessed using an integer index. However, the size of a <code>Vector</code> can grow or shrink as needed to accommodate adding and removing items after the <code>Vector</code> has been created. <p> Each vector tries to optimize storage management by maintaining a <code>capacity</code> and a <code>capacityIncrement</code>. The <code>capacity</code> is always at least as large as the vector size; it is usually larger because as components are added to the vector, the vector's storage increases in chunks the size of <code>capacityIncrement</code>. An application can increase the capacity of a vector before inserting a large number of components; this reduces the amount of incremental reallocation. <p> Note: To conserve space, the CLDC implementation is based on JDK 1.1.8, not JDK 1.3.
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<DT><B>Since: </B><DD>JDK1.0, CLDC 1.0</DD>
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<CODE>protected int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#capacityIncrement">capacityIncrement</A></B></CODE>
<BR>
The amount by which the capacity of the vector is automatically incremented when its size becomes greater than its capacity.</TD>
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<CODE>protected int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#elementCount">elementCount</A></B></CODE>
<BR>
The number of valid components in the vector.</TD>
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<CODE>protected <A HREF="../../java/lang/Object.html">Object</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#elementData">elementData</A></B></CODE>
<BR>
The array buffer into which the components of the vector are stored.</TD>
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<TD><CODE><B><A HREF="../../java/util/Vector.html#Vector()">Vector</A></B>()</CODE>
<BR>
Constructs an empty vector.</TD>
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<TD><CODE><B><A HREF="../../java/util/Vector.html#Vector(int)">Vector</A></B>(int initialCapacity)</CODE>
<BR>
Constructs an empty vector with the specified initial capacity.</TD>
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<TD><CODE><B><A HREF="../../java/util/Vector.html#Vector(int, int)">Vector</A></B>(int initialCapacity, int capacityIncrement)</CODE>
<BR>
Constructs an empty vector with the specified initial capacity and capacity increment.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#addElement(java.lang.Object)">addElement</A></B>(<A HREF="../../java/lang/Object.html">Object</A> obj)</CODE>
<BR>
Adds the specified component to the end of this vector, increasing its size by one.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#capacity()">capacity</A></B>()</CODE>
<BR>
Returns the current capacity of this vector.</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#contains(java.lang.Object)">contains</A></B>(<A HREF="../../java/lang/Object.html">Object</A> elem)</CODE>
<BR>
Tests if the specified object is a component in this vector.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#copyInto(java.lang.Object[])">copyInto</A></B>(<A HREF="../../java/lang/Object.html">Object</A>[] anArray)</CODE>
<BR>
Copies the components of this vector into the specified array.</TD>
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<CODE> <A HREF="../../java/lang/Object.html">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#elementAt(int)">elementAt</A></B>(int index)</CODE>
<BR>
Returns the component at the specified index.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../java/util/Enumeration.html">Enumeration</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#elements()">elements</A></B>()</CODE>
<BR>
Returns an enumeration of the components of this vector.</TD>
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<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#ensureCapacity(int)">ensureCapacity</A></B>(int minCapacity)</CODE>
<BR>
Increases the capacity of this vector, if necessary, to ensure that it can hold at least the number of components specified by the minimum capacity argument.</TD>
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<CODE> <A HREF="../../java/lang/Object.html">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#firstElement()">firstElement</A></B>()</CODE>
<BR>
Returns the first component of this vector.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#indexOf(java.lang.Object)">indexOf</A></B>(<A HREF="../../java/lang/Object.html">Object</A> elem)</CODE>
<BR>
Searches for the first occurence of the given argument, testing for equality using the <code>equals</code> method.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#indexOf(java.lang.Object, int)">indexOf</A></B>(<A HREF="../../java/lang/Object.html">Object</A> elem, int index)</CODE>
<BR>
Searches for the first occurence of the given argument, beginning the search at <code>index</code>, and testing for equality using the <code>equals</code> method.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#insertElementAt(java.lang.Object, int)">insertElementAt</A></B>(<A HREF="../../java/lang/Object.html">Object</A> obj, int index)</CODE>
<BR>
Inserts the specified object as a component in this vector at the specified <code>index</code>.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#isEmpty()">isEmpty</A></B>()</CODE>
<BR>
Tests if this vector has no components.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../java/lang/Object.html">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#lastElement()">lastElement</A></B>()</CODE>
<BR>
Returns the last component of the vector.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/Vector.html#lastIndexOf(java.lang.Object)">lastIndexOf</A></B>(<A HREF="../../java/lang/Object.html">Object</A> elem)</CODE>
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