多项选择题
Which two are void examples of method overriding？ （）
A. void setVar（float f） { x = f；}
B. public void setVar（int f） { x =f；}
C. public void setVar（float f） {return f；}
D. public double setVar（float f） {return f；}
E. protected float setVar（） { x = 3.0f； return 3.0f； }
相关考题
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单项选择题
Which statement at line 7 constructs an instance of the inner class？（）
A. InsideOne ei = eo.new InsideOne（）：
B. eo.InsideOne ei= co.new InsideOne（）：
C. InsideOne ei = EnclosingOne.new InsideOne（）：
D. EnclosingOne.insideOne ei = eo.new InsideOne（）： -
多项选择题
WhichtwoarecharacteristicsoftheInterceptingFilterpattern？（）
A. it provides centralized request handling for incoming requests.
B. It forces resource authentication to be distributed across web components.
C. It reduces coupling between presentation-tier clients and underlying business services.
D. It can be added and removed unobtrusively， without requiring changes to existing code.
E. It allows preprocessing and postprocessing on the incoming requests and outgoing responses. -
单项选择题
AdeveloperwantstoouseELtoinvokeafunctionusingS{my：bloof（“foof”）}.Whichisalwaystrue？（）
A. The method invoked by this function must be statie.
B. The function class must implement the Function interface.
C. The expression is NOT a valid EL expression for invoking a function.
D. The function must be declared in a web.xml file using theelement.
E. The function class must have a method with the signature：Void bloof （java.lang.Strings）
