オブジェクト指向言語・期末テスト解答用紙（2023 年 07 月 27 日）解答例

1. (3 × 2)

   (1)

   (B)

   (2)

   (A)

2. (3 × 5)

   (1)	System.currentTimeMillis()
   (2)	e.getKeyChar()
   (3)	e.getWhen()
   (4)	Character.isDigit(c)
   (5)	e.isShiftDown()

3. (1, 1, 3, 4)

   (1)	extends JPanel implements ActionListener
   (2)	extends JPanel
   (3)	e -> {
   	△
   	label.setText(text);
   	}
   (4)	e -> {
   	▽
   	label.setText(text);
   	}

4. (4 × 2)

   (1)	The sum is 35.
   (2)	3, 0, 2, 3, 2, 5, 5, 7, 10, 12, 17, 22, 29, 39, 51, 68, 90, 119, 158, 209,

5. (4 × 2)

   (1)

   (A), (B), (D)

   (2)

   (C), (E)

6. (12)

   I am a 0 week old caterpillar. I have 16 legs.

   〃 0 〃 tadpole. 〃 0 〃 .

   〃 0 〃 earthworm. 〃 0 〃 .

   〃 2 〃 caterpillar. 〃 16 〃 .

   〃 2 〃 tadpole. 〃 2 〃 .

   〃 2 〃 earthworm. 〃 0 〃 .

   〃 4 〃 pupa. 〃 0 〃 .

   〃 4 〃 frog. 〃 4 〃 .

   〃 4 〃 earthworm. 〃 0 〃 .

   〃 6 〃 butterfly. 〃 6 〃 .

   〃 6 〃 frog. 〃 4 〃 .

   〃 6 〃 earthworm. 〃 0 〃 .

7. (4 × 3)

   (1)	new Thread(this)
   (2)	null
   (3)	Thread.currentThread()

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