Language Fundamentals 1

OBJECTIVES

1.1 Develop code that declares classes (including abstract and all forms of nested classes), interfaces, and enums,and includes the appropriate use of package and import statements (including static imports).
声明类（抽象类 嵌套类），接口，枚举 包含包 及 引入声明（静态引入）
1.3 Develop code that declares, initializes, and uses primitives, arrays, enums, and objects as static, instance,and local variables. Also, use legal identifiers for variable names.
声明，初始化，基本类型，排列，枚举 和静态对象，实例，本地变量。合法标识符变量名。
7.2 Given an example of a class and a command-line,determine the expected runtime behavior.
类命令行，运行时状态。
7.3 Determine the effect upon object references and primitive values when they are passed into methods that perform. assignments or other modifying operations on the parameters.

7.4 Given a code example, recognize the point at which an object becomes eligible for garbage collection, and determine what is and is not guaranteed by the garbage collection system. Recognize the behaviors of System.gc and finalization.