java集合中next()和hasNext()之间的不同 [英] Differnce between next() and hasNext() in java collections

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本文介绍了java集合中next()和hasNext()之间的不同的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我是新的java和我正在通过集合,在迭代他们使用 next() hasNext()方法。这两个方法究竟做什么?什么时候我必须使用 next() hasNext()

I am new to java and I was going through collections and during the iteration they have used next() and hasNext() methods. What exactly does these two methods do? When do I have to use next() and hasNext()?

推荐答案

hasNext()将返回true it iteration has more values
next()返回迭代中的下一个元素

hasNext() will return true it iteration has more values and next() returns the next element in iteration

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