在某些情况下，方法需要基本类型 double 并且您将 Double 对象作为参数传递。
由于编译器对传递的对象进行拆箱，这会增加内存使用量还是降低性能？
最佳答案
这是 Java Notes 在 autoboxing 上所说的内容:
Prefer primitive types
Use the primitive types where there is no need for objects for two reasons.
- Primitive types may be a lot faster than the corresponding wrapper types, and are never slower.
- The immutability (can't be changed after creation) of the wrapper types may make their use impossible.
- There can be some unexpected behavior involving == (compare references) and .equals() (compare values). See the reference below for examples.
关于java - Java 中应该避免自动装箱吗？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7610664/