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�ѡ��ʥ륹�ڡ��η��˴ؤ��Ƥϡ��ʱߤȤ��ƹͤ��Ƥ�� (2.2.2��)��ᡤ �ѡ��ʥ륹�ڡ��ɽ��뤿��ˤϡ��ʱߤ��褷��ˡ��ʹ�� ˲�ž��ʤ��Фʤ�ʤ��ܥ��ƥ�ϡ�Java��JDK1.1(Java Development Kit1.1)�Ǥ��ꡤ�ʱߤ��ž��뤿��Υ᥽�åɤ�¸�ߤ�� ᡤ��ˡ��Ѥ��롥

1.

�ѡ��ʥ륹�ڡ��ʱߤζ��ʣ��Ȥ�^4.2��

2.

�ġ� �οʹ֤κ�ɸ��ʿ�԰�ư��ʱߤζ��ʣ�� ġ��οʹ֤οʹ��˹�碌��켡�Ѵ��롥

3.

ʣ��ºݤθġ��οʹ֤��֤��ɸ��ʿ�԰�ư��򤹤٤� ľ��ǤĤʤ��Ǥ��

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��Ȥʤ�Τ��ʣ��Ĥ��ΤȤ��Ǥ��뤬�� ȳ� ��ΤȤʤ�礦��Ȥδط��ʱߤ��濴�ȳ��ΤȤʤ�礦 ��٤��ʤ�褦�ˤ��(��4.4��)��ޤ�� ʱߤζ��¸�ߤ��ʣ��Ĥ��ο��n�Ȥ��С��ʱߤ�� Ȥʤ�礦��γ��٤�a�饸��Ȥ��ȡ�

$\begin{displaymath}a = \frac{2\pi}{n} \end{displaymath}$ (4.2)

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2�ˤĤ��
��ž��٤˴ؤ��Ƥϡ�3.2.3�ˤ��ꤵ�줿�ġ��ͤοʹ�� ؤγ��٤��Ѥ��Change�᥽�åɤˤ�ꡤʣ��Ĥ��٤Ƥ��ɸ �Ѵ��롥
3�ˤĤ��
�ǽ�Ū��ϡ�Java��Paint��饹�ˤ��롤 drawPolygon�᥽�åɤ��Ѥ�� 褹�롥

Figure 4.4: �ʱ߾�Ǥ��ΤȤ��

$\includegraphics[width=15zw,height=15zw,keepaspectratio]{ovalpoint1.eps}$

**Figure 4.4:** �ʱ߾�Ǥ��ΤȤ��
$\includegraphics[width=15zw,height=15zw,keepaspectratio]{ovalpoint1.eps}$

**Figure 4.5:** �ѡ��ʥ륹�ڡ��ե졼�०��ɥ�
$\includegraphics[width=35zw,height=35zw,keepaspectratio]{Myarea1.eps}$ �ѡ��ʥ륹�ڡ��礭��˴ؤ��ѿ��ν��ϡ��ʲ��̤�Ǥ��롥 ��ΰ衧600 $\times$ 600 �ѿ�̾��Ľ��(��¦),�ֽ��(��¦) MyArea��200,100 Roundy��9,10 Position��5,5

Hiroyuki Furukawa
2000-04-08

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