This chapter presents to the reader a more detailed view of Java as a language. It starts with the code organization in packages and the description of accessibility levels of classes (interfaces) and their methods and properties (fields). The reference types, as the main types of a Java object—oriented nature, are also presented in detail , followed by a list of reserved and restricted keywords and a discussion of their usage. The chapter ends with the methods of conversion between primitive types and from a primitive type to the corresponding reference type and back.
These are the Java language fundamental terms and features. The importance of their understanding cannot be overstated. Without them, you cannot write any Java program. So, try not to rush through this chapter and make sure you understand everything presented.
The following topics will be...
