單項(xiàng)選擇題

Which will declare a method that is available to all members of the same package and be referenced without an instance of the class？（）

A. abstract public void methoda （）；
B. public abstract double inethoda （）；
C. static void methoda （double dl） {}
D. public native double methoda （） {}
E. protected void methoda （double dl） {}

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多項(xiàng)選擇題

Which the three are valid declarations of a float？（）

A. float foo = -1；
B. float foo = 1.0；
C. float foo = 42el：
D. float foo = 2.02f：
E. float foo = 3.03d：

多項(xiàng)選擇題

Which the two demonstrate encapsulation of data？（）

A. Member data have no access modifiers.
B. Member data can be modified directly.
C. The access modifier for methods is protected.
D. The access modifier to member data is private.
E. Methods provide for access and modification of data.

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Which will declare a method that is available to all members of the same package and be referenced without an instance of the class？（）

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Which the three are valid declarations of a float？（）

Which the two demonstrate encapsulation of data？（）

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Which will declare a method that is available to all members of the same package and be referenced without an instance of the class？（）

Which the three are valid declarations of a float？（）

Which the two demonstrate encapsulation of data？（）