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繼承 (Inheritance)

Authored by 徐leo 徐leo

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繼承 (Inheritance)
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

請問語法 : class Circle extends Cylinder { },是指?

Circle繼承Cylinder

Cylinder 繼承Circle

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

請問語法 : class Circle extends Cylinder { },下列何者有錯?

Cylinder 是 Superclass

Circle 是 Subclass

Cylinder 是 parent Class

Cylinder 是 child Class

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

看到子類別中呼叫 super ( ) 的敘述句,代表?

子類別有一個super的方法

子類別呼叫父類別的建構方式

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

使用存取控制符 Private 的變數,只能在以下何種環境使用?

同一class本身

所屬Subclass

同一Package的class

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

若子類別覺得父類別現有的方法不適用,可以重新改寫,稱為?

overloading

overriding

Inheritance

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

如果子類別的方法與父類別同名,但方法中定義的參數型別或個數不同,稱作?

Overriding

Overloading

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

若子類別出現 super.i 語法,代表?

使用子類別的成員變數 i

使用父類別的成員變數 i

使用父類別的成員方法 super()

呼叫父類別建構式

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