單項(xiàng)選擇題

Given：

Which code， inserted at line 15， creates an instance of the Point class defined in Line？（）

A.Point p = new Point（）；
B.Line.Point p = new Line.Point（）；
C.The Point class cannot be instatiated at line 15.
D.Line l = new Line（）； l.Point p = new l.Point（）；

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單項(xiàng)選擇題

Given the following six method names：
add Listener
add Mouse Listener
set Mouse Listener
delete Mouse Listener
remove Mouse Listener
register Mouse Listener
How many of these method names follow JavaBean Listener naming rules？（）

A.1
B.2
C.3
D.4

單項(xiàng)選擇題

Given：

What is the result？（）

A.Mr. John Doe
B.An exception is thrown at runtime.
C.Compilation fails because of an error in line 12.
D.Compilation fails because of an error in line 15.
E.Compilation fails because of an error in line 20.

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Given： Which code， inserted at line 15， creates an instance of the Point class defined in Line？（）

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Given the following six method names： add Listener add Mouse Listener set Mouse Listener delete Mouse Listener remove Mouse Listener register Mouse Listener How many of these method names follow JavaBean Listener naming rules？（）

Given： What is the result？（）

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Given：

Which code， inserted at line 15， creates an instance of the Point class defined in Line？（）

Given the following six method names：
add Listener
add Mouse Listener
set Mouse Listener
delete Mouse Listener
remove Mouse Listener
register Mouse Listener
How many of these method names follow JavaBean Listener naming rules？（）

Given：

What is the result？（）