void sort(List list)//按自然排序的升序排序 void sort(List list, Comparator c)//定制排序，由Comparator控制排序逻辑 void swap(List list, int i ...

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 ...

Generics make your code more flexible and easier to read, and they help you avoid ClassCastExceptions at runtime. Get started with this introduction to using generics with the Java Collections ...