Java 2 certification study guide: Master the language fundamentals

Overview:
Developers already proficient in Java and preparing for Java certification receive a comprehensive review of the basics in this sample chapter from Complete Java 2 Certification Study Guide (Programmer and Developer Exams), 4th Edition. The chapter covers broad ground and a large variety of topics, ensuring a thorough grasp of the language fundamentals included in the objectives of the Programmer's Exam for J2SE 1.4.

here is the pdf