各位大神，小弟初学JAVA最近在学习集合的时候对于Iterator和foreach遍历集合有一些想法，希望大神们指点一下。 Iterator 迭代器 是接口 可通过Iterator 引用指向实现了Iterator接口的具体类的对象，即通过多态降低了系统的耦合度 。 返回迭代的下一个元素。 void remove ...

Iterators in Java typically expect exclusive access to the data structure they loop through. If another thread tries to modify a collection of objects while an ...

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 ...