
繼承 (Inheritance)
Quiz
•
Computers
•
University
•
Practice Problem
•
Hard
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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
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cylinder is a Circle,代表?
Circle繼承Cylinder
Cylinder繼承Circle
Cylinder包含Circle
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