常量定义必须使用关键字 const

A.static

B.final

C.abstract

D.const

A.Dim

B.Const

C.Static

D.Public

A.const

B.default

C.private

D.finally

A.final

B.static

C.final和static

D.const

A.const double PI = 3.14159;

B.double const PI = 3.14159;

C.double PI = 3.14159;

D.double pi; pi=3.14159;