java方法重载

class People {
 double getArea(double x,int y){
  return x*y;
 }
 int getArea(int x,double y){
  return (int)(x*y);
 }
 double getArea(float x,float y,float z){
  return (x*x+y*y+z*z)*2.0;
 }
}
public class example4_10 {
 public static void main(String args[]){
  People zhang=new People();
  System.out.println("面积:"+zhang.getArea(10,3,88));
  System.out.println("面积:"+zhang.getArea(10.0,8));
 }
}