在翻看 Java 1.8 源码发现，LinkedList 里面 checkElementIndex 和 checkPositionIndex 的实现基本一致，那是出于什么目的去实现两个方法呢？

A Collection in simple terms means when a group of similar things, often a group created by someone is known as a collection. A collection when collected works like a container – it groups multiple ...

We will focus on the relationship between polymorphism and Java inheritance. The main thing to keep in mind is that polymorphism requires an inheritance or an interface implementation. You can see ...