$B%"%/%;%9=$>~;R(B

Revised: Sep./09th/2002; Mar./27th/2002

$B=$>~;R$N@a(B$B$G@bL@$7$?$H$*$j!"(B$B%/%i%9(B$B!"(B$B%a%s%PJQ?t!J%U%#!<%k%I!K(B$B!"(B$B%a%=%C%I(B$B!"(B$B%3%s%9%H%i%/%?(B$B$K$O=$>~;R$r;XDj$G$-$^$9!#$=$l$>$l$K;XDj$G$-$k=$>~;R$O0[$J$j!"8@8l;EMM$H$7$FDj5A$5$l$F$$$^$9!#$3$NCf$G!"%"%/%;%9$N@)8B$r;XDj$9$k=$>~;R$O6&DL$G$9!#(B

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private $BF1$8%/%i%9Fb$+$i$7$+8F$S=P$;$J$$$,!"F1$8%/%i%9$+$i:n$i$l$?%*%V%8%'%/%HF1;N$G$"$l$P!"Aj8_$N(B private $B%a%s%P!<$K%"%/%;%9$G$-$k!#(B
$B>JN,(B $BF1$8(B$B%Q%C%1!<%8(B$BFb$+$i$7$+8F$S=P$;$J$$!#(B
protected $BF1$8(B$B%Q%C%1!<%8(B$B$+!"$=$N(B$B%5%V%/%i%9(B$B$+$i$7$+8F$S=P$;$J$$!#(B
public $B$I$3$+$i$G$b8F$S=P$;$k!#(B

$B!V>JN,!W$H8@$&$N$O!"$3$3$G5s$2$?;0$D$N%"%/%;%9=$>~;R$r;XDj$7$J$$$3$H$r0UL#$7$F$$$^$9!#DL>o$O!"%"%/%;%9@)8B$H$O4X78$N$J$$$[$+$N=$>~;R$,;XDj$5$l$F$$$k$3$H$,B?$$$G$7$g$&!#(B

$B4JC1$J%"%/%;%9@)8B$G$9$,$H$F$b6/NO$G8z2LE*$J%"%/%;%9@)8B$rDs6!$G$-$^$9!#(B

$B%+%W%;%k2=(B

$B%*%V%8%'%/%H;X8~$N%3!<%G%#%s%0$OItIJ$NAH$_9g$o$;$G$9!#JL8D$K:n$C$?ItIJF1;N$,%a%C%;!<%8$rAw$j$"$C$FA4BN$N=hM}$r?J$a$F$$$-$^$9!#(B

$B$3$N$H$-!"ItIJ$r(B private $B=$>~$7$F$*$1$P!"Ev3:%/%i%9Fb$+$i$N%"%/%;%9$7$+B8:_$;$:$K!"B>$N%/%i%9$+$iMxMQ$5$l$k$3$H$,L5$$$N$G!"

private $B=$>~$7$F$*$1$P!"ItIJ$NFHN)@-$,9b$^$j!"ItIJFbIt$G$NJQ99$,30It$K1F6A$rM?$($k$3$H$,L5$/!"M=$aA[Dj$7$F$$$?0J30$NIT@5$JMxMQ$rKI$0$3$H$,=PMh$^$9!#$3$l$r(B$B%+%W%;%k2=(B$B$H8F$S$^$9!#(B

$B86B'$H$7$F!"A4$F$N%a%s%P!~$7$F!"(Bpublic $B$J%a%=%C%I$rDL$7$F%"%/%;%9$5$l$k$h$&$K$7$F$*$-$^$9!#(Bpublic $B$J%a%=%C%I$O!"B>$N%*%V%8%'%/%H$H2qOC$9$k%$%s%?%U%'!<%9$H$J$k$N$G!"%$%s%?%U%'!<%9!&%a%=%C%I$H8F$V$3$H$,$G$-$^$9!#%a%=%C%I$b!"A4$F(B private $B$K$7$F$*$-!"I,MW:G>.8B$N%a%=%C%I$@$1$r(B public $B=$>~$9$k$HNI$$$G$7$g$&!#(B

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$B~;R$NNc$G$9!#%"%/%;%9@)8B$N=$>~;R$N$J$+$N(B private $B$,;XDj$5$l$F$$$^$9$+$i!"$3$NJQ?t$K$OEv3:%/%i%9Fb$+$i$7$+;2>H$G$-$^$;$s!#(B

private String name;

$B%a%=%C%I=$>~;R(B

$B%a%=%C%I(B$B$H$O!"%/%i%9$N%a%s%P!<$G$"$j!"$3$N%/%i%9$+$i:n$i$l$k%*%V%8%'%/%H$,;}$D5!G=!J

$B~;R$,(B protected $B$K;XDj$5$l$F$$$^$9$+$i!"$3$N%/%i%9$,B0$7$F$$$k%Q%C%1!<%8$KB0$9$kB>$N%/%i%9$+!"$3$N%/%i%9$r7Q>5$7$F$$$k%5%V%/%i%9$+$i8F$V$3$H$,$G$-$^$9!#(B

protected String getName() {
	return name;
}

$B%/%i%9=$>~;R(B

$B%/%i%9(B$B$K$b$3$3$G5s$2$?A4$F$N=$>~;R$r;XDj$9$k$3$H$,=PMh$^$9!#C"$7!"=$>~;R$4$H$K;XDj$G$-$k%/%i%9$N7A<0$,0[$J$C$F$$$k$N$G>/!9J#;($G$9!#(B

$B%/%i%9$OFbIt$KJL$N%/%i%9$rDj5A$9$k$3$H$b2DG=$G$9!#%/%i%9$NFbIt$K@k8@$7$?%/%i%9$rFbIt%/%i%9$H8F$S!"0lHV30B&$N%/%i%9$H$O0[$J$C$?07$$$r

$B0lHV30B&$N%/%i%9(B

$B0lHV30B&$N%/%i%9$K$O(B public $B$@$1$,;XDj2DG=$G$9!#C"$7!"%=!<%9%U%!%$%k(B (*.java) $B$NCf$G(B public $B%/%i%9$O0l$D$G$J$1$l$P$J$i$:!"%/%i%9L>$H%=!<%9%U%!%$%kL>$r0lCW$5$;$kI,MW$,$"$j$^$9!#(B

$B%"%/%;%9=$>~;R$r;XDj$7$J$$%/%i%9$O!"F1$8%Q%C%1!<%8Fb$N%/%i%9$+$i$7$+;2>H$G$-$^$;$s$,!"(B public $B%/%i%9$O$"$i$f$k%/%i%9$+$i;2>H$G$-$^$9!#$G$9$+$i!"%"%/%;%9$r@)8B$7$?$$%/%i%9$KBP$7$FB>$N%/%i%9$+$i$N;2>H$rCg2p$9$k0Y$N=PF~$j8}$H$7$F(B public $B%/%i%9$rDj5A$9$k$3$H$,$G$-$^$9!#(B

$B~$r;XDj$7$F$$$J$$%/%i%9(B Test $B$r!"B>$N%Q%C%1!<%8$+$iMxMQ$9$k$?$a$K!"(Bpublic $B=$>~;R$r;XDj$7$?%/%i%9(B ACTest $B$r:n@.$7$^$7$?!#%=!<%9%U%!%$%kL>$O(B ACTest.java $B$G$"$k$3$H$,I,MW$G$9!#(B

ACTest.java:

// $B0lHV30B&$N%/%i%9(B
class Test {
	String name;
}
// $B0lHV30B&$N%/%i%9(B
public class ACTest extends Test {
	// Test $B%/%i%97?JQ?t$r%a%s%P!<$H$7$FDj5A(B
	private Test obj;
	// obj $B$K%$%s%9%?%s%9$r%;%C%H$9$k%a%=%C%I(B
	public void setName(String str) {
		// Test $B%/%i%9$r%$%s%9%?%s%92=$7!"(B
		// Test $B%/%i%97?JQ?t(B obj $B$K(B Test $B%/%i%97?%*%V%8%'%/%H$N;2>H$r%;%C%H(B
		obj = new Test();
		// Test $B%/%i%97?%*%V%8%'%/%H$NJQ?t(B name $B$K%a%=%C%I0z?t(B str $B$r%;%C%H(B
		obj.name = str;
	}
	// obj $B%*%V%8%'%/%H$N(B name $BJQ?t$rJV$9%a%=%C%I(B
	public String getName(){
		// Test $B%/%i%97?%*%V%8%'%/%H$N(B name $BJQ?t$rJV$9(B
		return obj.name;
	}
}

$B$3$N%=!<%9%3!<%I$r3JG<$7$?(B *.java $B%U%!%$%k$NL>A0$O!"(B ACTest.java $B$G$"$k$3$H$,I,MW$G$9!#(B

C:\Java>javac ACTest.java
C:\Java>

$B%/%i%9$N%a%s%P!<$G$"$k%/%i%9(B

$B%/%i%9$KB0$7!"%/%i%9!?%*%V%8%'%/%H$H6&$K;}B3$7B3$1$kMWAG$r!"%/%i%9$N%a%s%P!<$H8F$S$^$9!#%a%s%P!<$O%5%V%/%i%9$K7Q>5$5$l$($kMWAG$G$9!#(B Java $B8@8l;EMM$G%/%i%9$N%a%s%P!<$H$7$F5v$5$l$kMWAG$O!"%/%i%9!"%$%s%?%U%'!<%9!"%U%#!<%k%I5Z$S%a%=%C%I$,Dj5A$5$l$F$$$^$9!#(B

protected, private $B$O$=$NDj5A>e!"%/%i%9$K$O;XDj$G$-$J$=$&$J46$8$G$9$,!"%/%i%9$N%a%s%P!<(B $B$H$7$F$"$i$o$l$k%/%i%9(B (member class) $B$KBP$7$F$O;XDj2DG=$G$9!#(B

$B%a%s%P!<%/%i%9$K4X$7$F$O8e$G>\$7$/@bL@$7$^$9$,!"B>$N%/%i%9FbIt$K@k8@$5$l$?%/%i%9$N$3$H$G$9!#C"$7!"%/%i%9$N%a%=%C%IFbIt$K=q$+$l$?FbIt%/%i%9$O%a%s%P!<%/%i%9$G$O$"$j$^$;$s!#(B

$B

// $B0lHV30B&$N%/%i%9(B
class EnclosingClass {
	// EnclosingClass $B$N%a%s%P!<%/%i%9(B
	private class MemberClass {
		// MemberClass $B$N%a%s%P!<%/%i%9(B
		private class InnerClass {
			private String name;
			public  void   setName(String str) {
				name = str;
			}
		}
		// MemberClass $B$N%a%=%C%I(B
		public void setName(String str) {
			InnerClass obj = new InnerClass();
			obj.setName(str);
		}
	}
	// EnclosingClass $B$N%a%=%C%I(B
	public void setName(String str) {
		MemberClass obj = new MemberClass();
		obj.setName("Tochihara");
	}
}
C:\Java>javac EnclosingClass.java
C:\Java>

$B%3%s%9%H%i%/%?=$>~;R(B

$B%3%s%9%H%i%/%?(B$B$H$O!"(B$B%/%i%9$+$i%*%V%8%'%/%H$r:n$k$H$-(B$B$K!"%/%i%9$G

$B%3%s%9%H%i%/%?$KDj5A$5$l$F$$$k=$>~;R$O!"$3$3$G>R2p$9$k%"%/%;%9=$>~;R$N;0$D$@$1$G$9!#(B

$BFC$KLdBj$K$J$k$N$O(B private $B=$>~;R$G$9!#$3$N=$>~;R$O!"Ev3:%/%i%9FbIt$+$i$N%"%/%;%90J30$O5qH]$7$^$9!#$7$?$,$C$F!"%3%s%9%H%i%/%?$,$3$N=$>~;R$r;XDj$5$l$F$$$l$P!"Ev3:%/%i%9$NFbIt$+$i<+J,<+?H$r%$%s%9%?%s%92=$9$k$3$H$7$+=PMh$J$$$H$$$&$3$H$K$J$j$^$9!#JQ?t$d%a%=%C%I$J$I$N%a%s%P!<$,(B static $B@k8@$5$l$F$$$F!"%$%s%9%?%s%92=$5$l$?$/$J$$%/%i%9$r:n$k$H$-$KFC$KM-8z$G$9!#(B



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