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Which modifer should be applied to a declaration of a class member variable for the value of variable to remain constant after the creation of the object?()
A.static
B.final
C.const
D.abstract
参考答案
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单选题package geometry； public class Hypotenuse { public InnerTriangle it = new InnerTriangle（）； class InnerTriangle { public int base； public int height； } } Which is true about the class of an object that can reference the variable base？ （）A
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单选题A class design requires that a member variable cannot be accessible directly outside the class. Which modifier should be used to obtain the access control？（）A
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多选题Which statements concerning the value of a member variable are true， when no explicit assignments have been made？（）AThe value of an int is undetermined.BThe value of all numeric types is zero.CThe compiler may issue an error if the variable is used before it is initialized.DThe value of a String variable is （empty string）.EThe value of all object variables is null.
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单选题A member variable defined in a class can be accessed only by the classes in the same package. Which modifier should be used to obtain the access control？（）A
privateB
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多选题A Company.com developer chooses to avoid using SingleThreadModel but wants to ensure that data is updated in a thread-safe manner. Which two can support this design goal？（）AStore the data in a local variable.BStore the data in an instance variable.CStore the data in the HttpSession object.DStore the data in the ServletContext object.EStore the data in the ServletRequest object.
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单选题What does it mean for a variable in the Application Editor to be defined as a parameter?（）A
The variable can be used to pass data to and from subflows. B
The value for that variable can be supplied via Application Configuration in Application Administration. C
The value for that variable is defined by the calling application. D
The variable can be used in conditional steps. E
The variable can be used to pass data to and from VoiceXML applications.
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单选题A public member vairable called MAX_LENGTH which is int type， the value of the variable remains constant value 100. Use a short statement to define the variable.（）A
public int MAX_LENGTH=100；B
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public final int MAX_LENGTH=100；
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