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compareTo( )

807569Sep 26 2006 — edited Sep 26 2006
Hi!
My compareTo method returns an ISBN string
How can I compare two strings? 
public int compareTo(Object obj) {
   Book  b = (Book)  obj;
  if(isbn<b.getIsbn())
       return -1;
             else if(isbn>b.getIsbn())
       return 1;
   else
      return 0;
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Locked on Oct 24 2006
Added on Sep 26 2006
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