例4-8.txt

这是一本java基础教程 对新手上路有很大帮助

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_8{
  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));
    }
}