Chapter 2

1. Reserved words contribute both to human readability and ease of parsing for the language implementation, but they also sometimes preclude the most natural names for the variables in a program, and too many reserved words can make it more difficult to learn a programming language.
2. Integers in C or Java, for example, can be expressed as signed or unsigned, in decimal, octal, hexadecimal, or maybe even binary format, for small, medium, large, or super-sized words.
3. Several languages implement a semicolon insertion mechanism that makes semicolons optional. Often, this involves using the newline character to replace the role of the semicolon as a statement terminator or separator.
4. Although most Java programs do not make use of this capability, putting main() in several (or all) classes might be very useful in unit testing and integration testing.
5. While it is feasible to provide pre-opened input/output facilities, they can involve substantial resources and initialization...