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面试：了解装箱和拆箱操作吗？
2022-06-12 16:05:00 【眠秋雨】
● 装箱：基本数据类型->引用数据类型
● 拆箱：引用数据类型->基本数据类型
装箱其实就是调用包装类的valueof()方法，拆箱调用的是包装类的xxxValue()方法。
频繁拆箱和装箱操作可能会引起性能问题。
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