test1.java

Java安全性编程实例,解压看说明

class MyDate1{
   int year, month, day;
   private void setDay(int d){
       day=d;

   }

   public void sd(int j){
       setDay(j+100);
   }
}


class MyDate2 extends MyDate1{

   public void setDay(int d){
       day=d+1;
   }
}



class Test1{
  public static void main(String args[] ){

       MyDate2 t=new MyDate2();
       t.sd(10);
       System.out.println(t.day);


  }

}