arraylist.html

API資料大全

          Searches for the first occurence of the given argument, testing 
 for equality using the <tt>equals</tt> method.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/ArrayList.html#isEmpty()">isEmpty</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tests if this list has no elements.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/ArrayList.html#lastIndexOf(java.lang.Object)">lastIndexOf</A></B>(<A HREF="../../java/lang/Object.html">Object</A>&nbsp;elem)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the index of the last occurrence of the specified object in
 this list.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../java/lang/Object.html">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/ArrayList.html#remove(int)">remove</A></B>(int&nbsp;index)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Removes the element at the specified position in this list.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/ArrayList.html#removeRange(int, int)">removeRange</A></B>(int&nbsp;fromIndex,
            int&nbsp;toIndex)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Removes from this List all of the elements whose index is between
 fromIndex, inclusive and toIndex, exclusive.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../java/lang/Object.html">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/ArrayList.html#set(int, java.lang.Object)">set</A></B>(int&nbsp;index,
    <A HREF="../../java/lang/Object.html">Object</A>&nbsp;element)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Replaces the element at the specified position in this list with
 the specified element.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/ArrayList.html#size()">size</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the number of elements in this list.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../java/lang/Object.html">Object</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/ArrayList.html#toArray()">toArray</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns an array containing all of the elements in this list
 in the correct order.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../java/lang/Object.html">Object</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/ArrayList.html#toArray(java.lang.Object[])">toArray</A></B>(<A HREF="../../java/lang/Object.html">Object</A>[]&nbsp;a)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns an array containing all of the elements in this list in the
 correct order.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/util/ArrayList.html#trimToSize()">trimToSize</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Trims the capacity of this <tt>ArrayList</tt> instance to be the
 list's current size.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.util.AbstractList"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.util.<A HREF="../../java/util/AbstractList.html">AbstractList</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../java/util/AbstractList.html#equals(java.lang.Object)">equals</A>, <A HREF="../../java/util/AbstractList.html#hashCode()">hashCode</A>, <A HREF="../../java/util/AbstractList.html#iterator()">iterator</A>, <A HREF="../../java/util/AbstractList.html#listIterator()">listIterator</A>, <A HREF="../../java/util/AbstractList.html#listIterator(int)">listIterator</A>, <A HREF="../../java/util/AbstractList.html#subList(int, int)">subList</A></CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.util.AbstractCollection"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.util.<A HREF="../../java/util/AbstractCollection.html">AbstractCollection</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../java/util/AbstractCollection.html#containsAll(java.util.Collection)">containsAll</A>, <A HREF="../../java/util/AbstractCollection.html#remove(java.lang.Object)">remove</A>, <A HREF="../../java/util/AbstractCollection.html#removeAll(java.util.Collection)">removeAll</A>, <A HREF="../../java/util/AbstractCollection.html#retainAll(java.util.Collection)">retainAll</A>, <A HREF="../../java/util/AbstractCollection.html#toString()">toString</A></CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.lang.<A HREF="../../java/lang/Object.html">Object</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../java/lang/Object.html#finalize()">finalize</A>, <A HREF="../../java/lang/Object.html#getClass()">getClass</A>, <A HREF="../../java/lang/Object.html#notify()">notify</A>, <A HREF="../../java/lang/Object.html#notifyAll()">notifyAll</A>, <A HREF="../../java/lang/Object.html#wait()">wait</A>, <A HREF="../../java/lang/Object.html#wait(long)">wait</A>, <A HREF="../../java/lang/Object.html#wait(long, int)">wait</A></CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.util.List"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from interface java.util.<A HREF="../../java/util/List.html">List</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../java/util/List.html#containsAll(java.util.Collection)">containsAll</A>, <A HREF="../../java/util/List.html#equals(java.lang.Object)">equals</A>, <A HREF="../../java/util/List.html#hashCode()">hashCode</A>, <A HREF="../../java/util/List.html#iterator()">iterator</A>, <A HREF="../../java/util/List.html#listIterator()">listIterator</A>, <A HREF="../../java/util/List.html#listIterator(int)">listIterator</A>, <A HREF="../../java/util/List.html#remove(java.lang.Object)">remove</A>, <A HREF="../../java/util/List.html#removeAll(java.util.Collection)">removeAll</A>, <A HREF="../../java/util/List.html#retainAll(java.util.Collection)">retainAll</A>, <A HREF="../../java/util/List.html#subList(int, int)">subList</A></CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>

<!-- ============ FIELD DETAIL =========== -->


<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="ArrayList(int)"><!-- --></A><H3>
ArrayList</H3>
<PRE>
public <B>ArrayList</B>(int&nbsp;initialCapacity)</PRE>
<DL>
<DD>Constructs an empty list with the specified initial capacity.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>initialCapacity</CODE> - the initial capacity of the list.<DT><B>Throws:</B><DD><CODE><A HREF="../../java/lang/IllegalArgumentException.html">IllegalArgumentException</A></CODE> - if the specified initial capacity
            is negative</DL>
</DD>
</DL>
<HR>

<A NAME="ArrayList()"><!-- --></A><H3>
ArrayList</H3>
<PRE>
public <B>ArrayList</B>()</PRE>
<DL>
<DD>Constructs an empty list.</DL>
<HR>

<A NAME="ArrayList(java.util.Collection)"><!-- --></A><H3>
ArrayList</H3>
<PRE>
public <B>ArrayList</B>(<A HREF="../../java/util/Collection.html">Collection</A>&nbsp;c)</PRE>
<DL>
<DD>Constructs a list containing the elements of the specified
 collection, in the order they are returned by the collection's
 iterator.  The <tt>ArrayList</tt> instance has an initial capacity of
 110% the size of the specified collection.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>c</CODE> - the collection whose elements are to be placed into this list.</DL>
</DD>
</DL>

<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="trimToSize()"><!-- --></A><H3>
trimToSize</H3>
<PRE>
public void <B>trimToSize</B>()</PRE>
<DL>
<DD>Trims the capacity of this <tt>ArrayList</tt> instance to be the
 list's current size.  An application can use this operation to minimize
 the storage of an <tt>ArrayList</tt> instance.<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="ensureCapacity(int)"><!-- --></A><H3>
ensureCapacity</H3>
<PRE>
public void <B>ensureCapacity</B>(int&nbsp;minCapacity)</PRE>
<DL>
<DD>Increases the capacity of this <tt>ArrayList</tt> instance, if
 necessary, to ensure  that it can hold at least the number of elements
 specified by the minimum capacity argument.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>minCapacity</CODE> - the desired minimum capacity.</DL>
</DD>
</DL>
<HR>

<A NAME="size()"><!-- --></A><H3>
size</H3>
<PRE>
public int <B>size</B>()</PRE>
<DL>
<DD>Returns the number of elements in this list.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../java/util/List.html#size()">size</A></CODE> in interface <CODE><A HREF="../../java/util/List.html">List</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../java/util/AbstractCollection.html#size()">size</A></CODE> in class <CODE><A HREF="../../java/util/AbstractCollection.html">AbstractCollection</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the number of elements in this list.</DL>
</DD>
</DL>
<HR>

<A NAME="isEmpty()"><!-- --></A><H3>
isEmpty</H3>
<PRE>
public boolean <B>isEmpty</B>()</PRE>
<DL>
<DD>Tests if this list has no elements.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../java/util/List.html#isEmpty()">isEmpty</A></CODE> in interface <CODE><A HREF="../../java/util/List.html">List</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../java/util/AbstractCollection.html#isEmpty()">isEmpty</A></CODE> in class <CODE><A HREF="../../java/util/AbstractCollection.html">AbstractCollection</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD><tt>true</tt> if this list has no elements;
          <tt>false</tt> otherwise.</DL>
</DD>
</DL>
<HR>

<A NAME="contains(java.lang.Object)"><!-- --></A><H3>
contains</H3>
<PRE>
public boolean <B>contains</B>(<A HREF="../../java/lang/Object.html">Object</A>&nbsp;elem)</PRE>
<DL>
<DD>Returns <tt>true</tt> if this list contains the specified element.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../java/util/List.html#contains(java.lang.Object)">contains</A></CODE> in interface <CODE><A HREF="../../java/util/List.html">List</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../java/util/AbstractCollection.html#contains(java.lang.Object)">contains</A></CODE> in class <CODE><A HREF="../../java/util/AbstractCollection.html">AbstractCollection</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>elem</CODE> - element whose presence in this List is to be tested.</DL>
</DD>
</DL>
<HR>

<A NAME="indexOf(java.lang.Object)"><!-- --></A><H3>
indexOf</H3>
<PRE>
public int <B>indexOf</B>(<A HREF="../../java/lang/Object.html">Object</A>&nbsp;elem)</PRE>
<DL>
<DD>Searches for the first occurence of the given argument, testing 
 for equality using the <tt>equals</tt> method.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../java/util/List.html#indexOf(java.lang.Object)">indexOf</A></CODE> in interface <CODE><A HREF="../../java/util/List.html">List</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../java/util/AbstractList.html#indexOf(java.lang.Object)">indexOf</A></CODE> in class <CODE><A HREF="../../java/util/AbstractList.html">AbstractList</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>elem</CODE> - an object.<DT><B>Returns:</B><DD>the index of the first occurrence of the argument in this
          list; returns <tt>-1</tt> if the object is not found.<DT><B>See Also: </B><DD><A HREF="../../java/lang/Object.html#equals(java.lang.Object)"><CODE>Object.equals(Object)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="lastIndexOf(java.lang.Object)"><!-- --></A><H3>
lastIndexOf</H3>
<PRE>
public int <B>lastIndexOf</B>(<A HREF="../../java/lang/Object.html">Object</A>&nbsp;elem)</PRE>
<DL>
<DD>Returns the index of the last occurrence of the specified object in
 this list.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../../java/util/List.html#lastIndexOf(java.lang.Object)">lastIndexOf</A></CODE> in interface <CODE><A HREF="../../java/util/List.html">List</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../java/util/AbstractList.html#lastIndexOf(java.lang.Object)">lastIndexOf</A></CODE> in class <CODE><A HREF="../../java/util/AbstractList.html">AbstractList</A></CODE></DL>