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📁 Data Structures And Algorithms With Object-Oriented Design Patterns In Python (2003) source code and

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<HTML><HEAD><TITLE>Method Resolution</TITLE></HEAD><BODY bgcolor="#FFFFFF"> <a href="../index.html" target="_top"><img src="../icons/usins.gif" alt="Logo" align=right></a><b>Data Structures and Algorithms with Object-Oriented Design Patterns in Python</b><br><A NAME="tex2html8083" HREF="page604.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="../icons/next_motif.gif"></A> <A NAME="tex2html8081" HREF="page601.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="../icons/up_motif.gif"></A> <A NAME="tex2html8075" HREF="page602.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="../icons/previous_motif.gif"></A>  <A NAME="tex2html8085" HREF="page611.html"><IMG WIDTH=43 HEIGHT=24 ALIGN=BOTTOM ALT="index" SRC="../icons/index_motif.gif"></A> <BR><HR><H3><A NAME="SECTION0017622000000000000000">Method Resolution</A></H3><P>Consider the following sequence of instructions:<PRE>g1 = Circle(Point (0,0), 5)g2 = Square(Point (0,0), 5)g1.draw()g2.draw()</PRE>The statement <tt>g1.draw()</tt> calls <tt>Circle.draw</tt>whereas the statement <tt>g2.draw()</tt> calls <tt>Rectangle.draw</tt>.<P>It is as if every object of a class ``knows'' the actual methodto be invoked when a method is called on that object.E.g, a <tt>Circle</tt> ``knows'' to call<tt>Circle.draw</tt>,<tt>GraphicalObject.erase</tt> and <tt>GraphicalObject.moveTo</tt>,whereas a <tt>Square</tt> ``knows'' to call<tt>Rectangle.draw</tt>,<tt>GraphicalObject.erase</tt> and <tt>GraphicalObject.moveTo</tt>.<P><HR><A NAME="tex2html8083" HREF="page604.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="../icons/next_motif.gif"></A> <A NAME="tex2html8081" HREF="page601.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="../icons/up_motif.gif"></A> <A NAME="tex2html8075" HREF="page602.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="../icons/previous_motif.gif"></A>  <A NAME="tex2html8085" HREF="page611.html"><IMG WIDTH=43 HEIGHT=24 ALIGN=BOTTOM ALT="index" SRC="../icons/index_motif.gif"></A> <P><ADDRESS><img src="../icons/bruno.gif" alt="Bruno" align=right><a href="../copyright.html">Copyright &#169; 2003</a> by <a href="../signature.html">Bruno R. Preiss, P.Eng.</a>  All rights reserved.</ADDRESS></BODY></HTML>

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