instanceof ?

[Dillinger4]

Im trying to use the instanceof operator within the context of error handling but the code seems to be not working properly.
I just want to specify one superclass and be able to determine which subclass is being caught. No casting is necessary since i dont need to work with the object.
Thanks for any help.

 // no casting necessary
try{
.........
}catch(Exception e){
       if(e instanceof FileNotFoundException){
         FileNotFoundException fnf = (FileNotFoundException) e; 
         fnf.getMessage(); 
      }
    }

// what i would like to do
try{
............

}catch(Exception e){
      if(e instanceof FileNotFoundException){
        System.out.println("FileNotFoundException!!!");
      }
      if(e instanceof NullPointerException){
        System.out.println("NullPointerException!!!");
     } 
   }