5/13 物件導向程式設計 練習一

// app9_13, 傳遞物件陣列到method
class CCircle        // 定義類別CCircle
{
   private static double pi=3.14;
   private double radius;

   public CCircle(double r)
   {
      radius=r;
   }
   public static double compare(CCircle c[])  // compare() method
   {
      double max=0.0;
      for(int i=0;i<c.length;i++)
         if(c[i].radius>max)
            max=c[i].radius;
      return max;
   }
   public static double compmin(CCircle m[])  // compare() method
   {
      double min=99.0;
      for(int i=0;i<m.length;i++)
         if(m[i].radius<min)
            min=m[i].radius;
      return min;
   }
}

public class app9_13
{
   public static void main(String args[])
   {
      CCircle cir[];
      cir2=new CCircle[3];
      cir2[0]=new CCircle(2.0);
      cir2[1]=new CCircle(9.0);
      cir2[2]=new CCircle(1.0);

      System.out.println("Largest radius = "+CCircle.compare(cir));
      System.out.println("Smallest radius = "+CCircle.compmin(cir));
      System.out.println();
      System.out.println("                       =============");
      System.out.println("                       ==B10207081==");
      System.out.println("                       == 曾揚哲  ==");
      System.out.println("                       =============");
      System.out.println();
   }
}