//參數的值傳遞
class Tom
{  
  void f(int x,double y)
   {
       x=x+1;
       y=y+1;
       System.out.printf("參數x和y的值分別是:%d,%f\n",x,y);
   } 
}
class Example
{
   public static void main(String args[])
   {
     int x=10;
     double y=12.58; 
     Tom tom=new Tom();
     tom.f(x,y);
     System.out.printf("main方法中x和y的值仍然分別是:%d,%f\n",x,y);
   }
}