Thread: Handling exception in overridden class

 
import java.io.*;
class A
{
    public void display()
    {
        System.out.println("SuperClass");
    }
}
public class B extends A 
{
   @Override
       public void display() throws IOException
       {
           System.out.println("SubClass");
       }
}

Here, A is base class and B is derived class.
Now if method display() in class B throws IOException, it gives compile error.
It says, overridden method does not throw java.io.IOException. What does that mean?
But if it throws any other exception like ArithmeticException or NullPointerException, it works fine.
So, what is the problem??
Plzzz help.

throws IOException Did U Use In Second Method What U R Doing There I Didnt get You But If U R Throwing A Exception ,Exception Will Never Create Here N U R Throwing The IoException Just Try With Out That plz Give The Description What u Want To Do