final class D
{
    void number()
    {
        System.out.println("true");
    }
    
}
class P extends D // it will show error as its ssinged as final ....
{
   
    void number()
    {
        System.out.println("true");
    }
    
}

class O
{
    public static void main(String[] args)
    {
        P r = new P();
        r.number();
        
}
}