标注作为修饰符，可以添加到包、类、接口、方法或字段声明中。
Annotations serve as modifiers that can be added to packages, classes, interfaces, methods, or field declarations.
问题是程序员可能会无意中编写这样的代码(比如，由于“复制和粘贴”操作，错误地在字段声明中包括静态修饰符)。
The problem is that programmers could accidentally write such code (say by mistakenly including a static modifier in a field declaration, due to copy-and-pasting).
注释是可以添加到代码中的修饰符，可以用于包声明、类型声明、构造函数、方法、字段、参数和变量。
Annotations are modifiers you can add to your code and apply to package declarations, type declarations, constructors, methods, fields, parameters, and variables.
这些访问修饰符定义类的使用者访问字段的方式。
These access modifiers define how users of the class can access the fields.
类中的常数字段类似于全局或函数常数，不同的只是它的作用范围是该类，而且它可以用多个修饰符来指定其可见性和用法。
A constant field in a class is similar to a global or function constant, except that it is scoped to the class and it can have various modifiers governing its visibility and usage.
类中的常数字段类似于全局或函数常数，不同的只是它的作用范围是该类，而且它可以用多个修饰符来指定其可见性和用法。
A constant field in a class is similar to a global or function constant, except that it is scoped to the class and it can have various modifiers governing its visibility and usage.
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