G. Cornell and C. Horstmann, Core Java, Prentice Hall Computer Books, 
ISBN 0135657555, April 1996 (List price: $40)
(2nd ed. came out in January 1997)

H. M. Deitel and P. J. Deitel. Java, How to program, Prentice Hall, 
ISBN 0132634015, September 1996 (List price: $50)
(2nd ed. coming out)

E. R. Harold, Java Developer's Resource, Prentice Hall, 
ISBN 0135707897, September 1996 (List price: $27)

J. Jaworski and C. Jardin, Java Developer's Guide, SAMS/Macmillan Comp. Pub.,
ISBN 157521069X, July 1996  (List price: $40)

P. van der Linden, Just Java, Sunsoft Press/Prentice Hall, 
ISBN 013565839X, March 1996   (List price: $35)

P. Naughton, The Java Handbook, Osborne McGraw-Hill, 
ISBN 0078821991, April 1996 (List price: $28)