Java - Method Overriding

class employee

 {

   int empid;

   String name, designation;

   double salary;  

   employee(int eid, String na, String des, double sa)

      {

          empid = eid;

          name = na;

          designation = des;

          salary = sa;

      }

    void show()

      {

          System.out.println("\nEmployee Id : "+empid);

          System.out.println("\nEmployee Name : "+name);

          System.out.println("\nEmployee Designation : "+designation);

          System.out.println("\nEmployee Salary : "+salary);

     }

}

class sportsemployee extends employee

  {

     String grade;

     sportsemployee(int eid, String na, String des, String gra, double sa)  

     {

        super(eid,na,des,sa);

        grade = gra;

     }

void show()

      {

          System.out.println("\nSports Employee Grade : "+grade);

      }

  }

class override1

   {

      public static void main(String arg[])

      {

         employee ee = new employee(101,"senthil","Professor",50000);

         sportsemployee t = new sportsemployee(101,"senthil","Professor","Batsman",50000);

         employee em;

         em = ee;

         em.show();

         em = t;

         em.show();

   }

}