Core Java I :-
Thinking in Java, by Bruce Eckel, 3rd Ed Link
Abstract Data Types in Java Link
Thinking in Patterns with Java Link
Introduction to Programming Using Java Link
The Java Reference Library CD Bookshelf Link
Introduction to Computer Science Using Java Link
Java Book Chapters Link
The Java Language Environment Link
The Struts Framework: Practical Guide for Java Programmers (The Practical Guides) Link
Concurrent Programming Using Java Link
Free Java Books Collection Link
330 Java Tips Link
Java by Examples Link
Brewing Java: A Tutorial Link
The Java Tutorial Link
Java Unleashed Link
Using Java 1.1, 3rd Edition Link
Developing Intranet Applications with Java Link
Interface Design: Best Practices in Object-Oriented API Design in Java Link
Bleeding at the Keyboard: A Guide to Modern Programming with Java Link
The Java Look and Feel Link
Better, Faster, Lighter Java Link
Objects and Java Link
Java, an Object First Approach Link
Java Expert Solutions Link
Java Lecture Notes Link
Java Design Pattern: A Tutorial Link
Java Performance Link
Developing Java Beans (Java Series) Link
Essentials of the Java Programming, Part 1 Link
Essentials of the Java Programming, Part 2 Link
Teach Yourself Java 1.1 Programming in 24 Hours Link
Tricks of Java Programming Gurus Link
Teach Yourself Java in 21 Days Link
Web Programming with Java Link
The Official Gamelan Java Directory Link
Java and XML (O'Reilly Java Tools) Link
Principles of Object-Oriented Programming in Java Link