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A. float getVar（） {return x：}
B. public float getVar（） {return x； }
C. public double getVar（） {return x； }
D. protected float getVar（） {return x； }
E. public float getVar（float f） {return f；}

A. The foo initialization parameter CANNOT be set programmatically.
B. Compilation fails because getlnitParameter returns type Object.
C. The foo initialization parameter is NOT a servlet initialization parameter.
D. Compilation fails because ServletContext does NOT have a getlnitParameter method.
E. The foo parameter must de defined within the  element of the deployment  descriptor.
F. The foo initialization parameter can also be retrievedusing getSErvletConfig（）.  GetlnitParameter （“foo”）.