rectangle.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Apr 27 23:32:57 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class Rectangle</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/Rectangle.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../java/awt/PrintJob.html"><B>PREV CLASS</B></A> <A HREF="../../java/awt/RenderingHints.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="Rectangle.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: <A HREF="#inner_classes_inherited_from_class_java.awt.geom.Rectangle2D">INNER</A> | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">java.awt</FONT><BR>Class Rectangle</H2><PRE><A HREF="../../java/lang/Object.html">java.lang.Object</A> | +--<A HREF="../../java/awt/geom/RectangularShape.html">java.awt.geom.RectangularShape</A> | +--<A HREF="../../java/awt/geom/Rectangle2D.html">java.awt.geom.Rectangle2D</A> | +--<B>java.awt.Rectangle</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../java/lang/Cloneable.html">Cloneable</A>, <A HREF="../../java/io/Serializable.html">Serializable</A>, <A HREF="../../java/awt/Shape.html">Shape</A></DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../javax/swing/text/DefaultCaret.html">DefaultCaret</A></DD></DL><HR><DL><DT>public class <B>Rectangle</B><DT>extends <A HREF="../../java/awt/geom/Rectangle2D.html">Rectangle2D</A><DT>implements <A HREF="../../java/awt/Shape.html">Shape</A>, <A HREF="../../java/io/Serializable.html">Serializable</A></DL><P>A <code>Rectangle</code> specifies an area in a coordinate space that is enclosed by the <code>Rectangle</code> object's top-left point (<i>x</i>, <i>y</i>) in the coordinate space, its width, and its height. <p> A <code>Rectangle</code> object's <code>width</code> and <code>height</code> are <code>public</code> fields. The constructors that create a <code>Rectangle</code>, and the methods that can modify one, do not prevent setting a negative value for width or height. <p> A <code>Rectangle</code> whose width or height is negative is considered empty. If the <code>Rectangle</code> is empty, then the <code>isEmpty</code> method returns <code>true</code>. No point can be contained by or inside an empty <code>Rectangle</code>. The values of <code>width</code> and <code>height</code>, however, are still valid. An empty <code>Rectangle</code> still has a location in the coordinate space, and methods that change its size or location remain valid. The behavior of methods that operate on more than one <code>Rectangle</code> is undefined if any of the participating <code>Rectangle</code> objects has a negative <code>width</code> or <code>height</code>. These methods include <code>intersects</code>, <code>intersection</code>, and <code>union</code>.<P><DL><DT><B>Since: </B><DD>JDK1.0</DD><DT><B>See Also: </B><DD><A HREF="../../serialized-form.html#java.awt.Rectangle">Serialized Form</A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><A NAME="inner_classes_inherited_from_class_java.awt.geom.Rectangle2D"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Inner classes inherited from class java.awt.geom.<A HREF="../../java/awt/geom/Rectangle2D.html">Rectangle2D</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../java/awt/geom/Rectangle2D.Double.html">Rectangle2D.Double</A>, <A HREF="../../java/awt/geom/Rectangle2D.Float.html">Rectangle2D.Float</A></CODE></TD></TR></TABLE> <!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><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/awt/Rectangle.html#height">height</A></B></CODE><BR> The height of the <code>Rectangle</code>.</TD></TR><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/awt/Rectangle.html#width">width</A></B></CODE><BR> The width of the <code>Rectangle</code>.</TD></TR><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/awt/Rectangle.html#x">x</A></B></CODE><BR> The <i>x</i> coordinate of the <code>Rectangle</code>.</TD></TR><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/awt/Rectangle.html#y">y</A></B></CODE><BR> The <i>y</i> coordinate of the <code>Rectangle</code>.</TD></TR></TABLE> <A NAME="fields_inherited_from_class_java.awt.geom.Rectangle2D"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class java.awt.geom.<A HREF="../../java/awt/geom/Rectangle2D.html">Rectangle2D</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../java/awt/geom/Rectangle2D.html#OUT_BOTTOM">OUT_BOTTOM</A>, <A HREF="../../java/awt/geom/Rectangle2D.html#OUT_LEFT">OUT_LEFT</A>, <A HREF="../../java/awt/geom/Rectangle2D.html#OUT_RIGHT">OUT_RIGHT</A>, <A HREF="../../java/awt/geom/Rectangle2D.html#OUT_TOP">OUT_TOP</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/awt/Rectangle.html#Rectangle()">Rectangle</A></B>()</CODE><BR> Constructs a new <code>Rectangle</code> whose top-left corner is at (0, 0) in the coordinate space, and whose width and height are both zero.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/awt/Rectangle.html#Rectangle(java.awt.Dimension)">Rectangle</A></B>(<A HREF="../../java/awt/Dimension.html">Dimension</A> d)</CODE><BR> Constructs a new <code>Rectangle</code> whose top left corner is (0, 0) and whose width and height are specified by the <code>Dimension</code> argument.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/awt/Rectangle.html#Rectangle(int, int)">Rectangle</A></B>(int width, int height)</CODE><BR> Constructs a new <code>Rectangle</code> whose top-left corner is at (0, 0) in the coordinate space, and whose width and height are specified by the arguments of the same name.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/awt/Rectangle.html#Rectangle(int, int, int, int)">Rectangle</A></B>(int x, int y, int width, int height)</CODE><BR> Constructs a new <code>Rectangle</code> whose top-left corner is specified as (<code>x</code>, <code>y</code>) and whose width and height are specified by the arguments of the same name.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/awt/Rectangle.html#Rectangle(java.awt.Point)">Rectangle</A></B>(<A HREF="../../java/awt/Point.html">Point</A> p)</CODE><BR> Constructs a new <code>Rectangle</code> whose top-left corner is the specified <code>Point</code>, and whose width and height are both zero.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/awt/Rectangle.html#Rectangle(java.awt.Point, java.awt.Dimension)">Rectangle</A></B>(<A HREF="../../java/awt/Point.html">Point</A> p, <A HREF="../../java/awt/Dimension.html">Dimension</A> d)</CODE><BR> Constructs a new <code>Rectangle</code> whose top-left corner is specified by the <A HREF="../../java/awt/Point.html"><CODE>Point</CODE></A> argument, and whose width and height are specified by the <A HREF="../../java/awt/Dimension.html"><CODE>Dimension</CODE></A> argument.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/awt/Rectangle.html#Rectangle(java.awt.Rectangle)">Rectangle</A></B>(<A HREF="../../java/awt/Rectangle.html">Rectangle</A> r)</CODE><BR> Constructs a new <code>Rectangle</code>, initialized to match the values of the specificed <code>Rectangle</code>.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><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/awt/Rectangle.html#add(int, int)">add</A></B>(int newx, int newy)</CODE><BR> Adds a point, specified by the integer arguments <code>newx</code> and <code>newy</code>, to this <code>Rectangle</code>.</TD></TR><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/awt/Rectangle.html#add(java.awt.Point)">add</A></B>(<A HREF="../../java/awt/Point.html">Point</A> pt)</CODE><BR> Adds the specified <code>Point</code> to this <code>Rectangle</code>.</TD></TR><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/awt/Rectangle.html#add(java.awt.Rectangle)">add</A></B>(<A HREF="../../java/awt/Rectangle.html">Rectangle</A> r)</CODE><BR> Adds a <code>Rectangle</code> to this <code>Rectangle</code>.</TD></TR><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/awt/Rectangle.html#contains(int, int)">contains</A></B>(int x, int y)</CODE><BR> Checks whether or not this <code>Rectangle</code> contains the point at the specified location (<i>x</i>, <i>y</i>).</TD></TR><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/awt/Rectangle.html#contains(int, int, int, int)">contains</A></B>(int X,⌨️ 快捷键说明
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