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For quick and short java tutorial refer this material.

Chapter 1: Language Fundamentals
Chapter 2: Operators and assignments
Chapter 3: Modifiers
Chapter 4: Converting and Casting
Chapter 5: Flow Control and Exceptions
Chapter 6: Objects and Classes
Chapter 7: Threads
Chapter 8: java.lang package
Chapter 9: java.util package
Chapter 10: Components
Chapter 11: Layout Managers
Chapter 12: Events
Chapter 13: Painting
Chapter 14: Applets and HTML
Chapter 15: I/O