comparing an object with null

From: Asad Khan (uoft_cstutor_at_yahoo.com)
Date: 10/31/03 

Date: Fri, 31 Oct 2003 16:20:47 GMT

I have the following method in a class 'foo'.

  public boolean equals(Object o) {
    if (!(o.equals(null))) {
       // do some stuff
    }
  }

  The problem I am having is that, if the object that is passed in is
instanceof foo, then it recursively calls the equals method, and I get a
nullpointer exception. So how can I compare if the object that is being
passed in is null or not?

Thanks.

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