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29 lines
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<!-- Common Lisp HyperSpec (TM), version 7.0 generated by Kent M. Pitman on Mon, 11-Apr-2005 2:31am EDT -->
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<TITLE>CLHS: Section 4.3.3</TITLE>
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<H1><A REV=MADE HREF="http://www.lispworks.com/"><IMG WIDTH=80 HEIGHT=65 ALT="[LISPWORKS]" SRC="../Graphics/LWSmall.gif" ALIGN=Bottom></A><A REL=TOP HREF="../Front/index.htm"><IMG WIDTH=237 HEIGHT=65 ALT="[Common Lisp HyperSpec (TM)]" SRC="../Graphics/CLHS_Sm.gif" ALIGN=Bottom></A> <A REL=PREV HREF="04_cb.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="04_c.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="04_cd.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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<H2>
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4.3.3 Creating Instances of Classes</H2> <P>
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The generic function <A REL=DEFINITION HREF="f_mk_ins.htm#make-instance"><B>make-instance</B></A> creates and returns a new <A REL=DEFINITION HREF="26_glo_i.htm#instance"><I>instance</I></A> of a <A REL=DEFINITION HREF="26_glo_c.htm#class"><I>class</I></A>. The object system provides several mechanisms for specifying how a new <A REL=DEFINITION HREF="26_glo_i.htm#instance"><I>instance</I></A> is to be initialized. For example, it is possible to specify the initial values for <A REL=DEFINITION HREF="26_glo_s.htm#slot"><I>slots</I></A> in newly created <A REL=DEFINITION HREF="26_glo_i.htm#instance"><I>instances</I></A> either by giving arguments to <A REL=DEFINITION HREF="f_mk_ins.htm#make-instance"><B>make-instance</B></A> or by providing default initial values. Further initialization activities can be performed by <A REL=DEFINITION HREF="26_glo_m.htm#method"><I>methods</I></A> written for <A REL=DEFINITION HREF="26_glo_g.htm#generic_function"><I>generic functions</I></A> that are part of the initialization protocol. The complete initialization protocol is described in <A REL=CHILD HREF="07_a.htm">Section 7.1 (Object Creation and Initialization)</A>. <P>
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