定义一个公有double型符号常量PI,下面的语句中正确的是()。
A: public final double PI;
B: public final static double PI=3.14159;
C: public final static double PI;
D: public static double PI=3.14159;
A: public final double PI;
B: public final static double PI=3.14159;
C: public final static double PI;
D: public static double PI=3.14159;
举一反三
- 定义一个公有double型常量PI，哪一条语句最好？（ ） A: public final double PI; B: public final static double PI=3.14; C: public final static double PI; D: public static double PI=3.14;
- 定义一个公有 double 型常量 PI，哪一条语句最好？ A: public double PI; B: public static double PI; C: public final static double PI=3.14; D: public final static double PI;
- 定义一个公有 double 型常量 PI，哪一条语句最好？ A: public double PI; B: public static double PI; C: public final static double PI=3.14; D: public final static double PI;
- 定义一个公有double型常量PI为3.14，下列正确的是： A: public double PI=3.14; B: public final static double PI=3.14; C: public final static double PI; D: public final double PI=3.14;
- 以下定义符号常量的语句正确的有____和____。 A: const double PI = 3.14159; B: double const PI = 3.14159; C: double PI = 3.14159; D: double pi;pi=3.14159;