给定如下 JAVA 代码 , 编译运行 , 结果将是 ( ) public class Sample{ public double result(double d1,double d2){ return d1 } public double result(int d1,double d2){ return d1 } public double result(int d1,int d2){ return d1-d2; } private int result(int i){ return i; } public static void main(String [] args){ Sample s=new Sample(); System.out.print(s.result(2,3.0)+","); System.out.print(s.result(4.0,4.5)+","); System.out.print(s.result(10,9)); } }