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Thread: Handling exception in overridden class

  1. #1
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    Default 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.


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Handling exception in overridden class

    overridden method does not throw java.io.IOException.
    You are trying to change the definition of the method.

    You have left off part of the error message. Please post the full text of the error message.
    Last edited by Norm; April 21st, 2012 at 04:58 PM.
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
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    Unhappy Re: Handling exception in overridden class

    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

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    Administrator copeg's Avatar
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    Default Re: Handling exception in overridden class

    Quote Originally Posted by jitu.ideas2it View Post
    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
    Please write with proper grammar. Your post is virtually unreadable...'U' and 'plz' are not words

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