This Java tutorial highlights important concepts that you must know for Oracle’s JavaTM Certification exam. Read the tutorial when you have grasped the fundamentals of the JavaTMtechnology and want to prepare for the Certification exam. The tutorial covers all the topics that are part of the Java certification exam. For some topics the description may be a little brief and you may want to refer to some Java Certification book.
The section covers Java technology basics like reserved words, identifier names, primitive types, contents of a Java source file etc. It also covers Java’s command line arguments.
This section explains commonly used Java language’s operators with special emphasis on shifting operators.
The section covers fundamentals of array declarations and classes in Java technology.
This section explains the Object class, Wrapper classes, String class and the Math class. It also explains the basics of Java technology’s Garbage Collection.
The section covers various aspects of threads in Java technology.
This section covers core interfaces defined in Collections.
This section covers basics of Files and Input/Output.
Besides a large number of scjp questions for each topic, the site has FAQ on Java Certification