Boxing and unboxing conversions Warns about automatic boxing operations, which may impact performance, and breaks assumptions about object identity for type wrapper objects.
boxingand unboxing conversions对自动装箱操作发出警告(装箱操作可能影响性能)，并且不再对类型包装对象做对象身份的假设。
Generics are useful because they provide stronger compile-time type checking, require fewer explicit conversions between data types, and reduce the need for boxing operations and run-time type checks.
泛型相当有用，因为他们提供强制的编译时类型检查，要求更少的数据类型之间的显式转换，并减少装箱拆箱的操作和运行时类型检查。
Generics are useful because they provide stronger compile-time type checking, require fewer explicit conversions between data types, and reduce the need for boxing operations and run-time type checks.
泛型相当有用，因为他们提供强制的编译时类型检查，要求更少的数据类型之间的显式转换，并减少装箱拆箱的操作和运行时类型检查。
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