包含了泛型,枚举,静态导入,自动装箱拆箱,foreach,可变参数,反射等知识-Contains the generics, enumerations, static imports, automatically split open a case, using the foreach, variable parameter, such as reflection

包含了泛型,枚举,静态导入,自动装箱拆箱,foreach,可变参数,反射等知识()