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问题描述
我经常看到这样的代码:
I often see code like:
Iterator i = list.iterator();
while(i.hasNext()) {
...
}
但我这样写(当 Java 1.5 不可用或每个都不能使用时):
but I write that (when Java 1.5 isn't available or for each can't be used) as:
for(Iterator i = list.iterator(); i.hasNext(); ) {
...
}
因为
- 更短了
- 它将
i保持在较小的范围内 - 它减少了混淆的机会.(
i是否在尽管?i在哪里声明?)
- It is shorter
- It keeps
iin a smaller scope - It reduces the chance of confusion. (Is
iused outside the while? Where isideclared?)
我认为代码应该尽可能简单易懂，这样我只需要编写复杂的代码来完成复杂的事情.你怎么认为?哪个更好?
I think code should be as simple to understand as possible so that I only have to make complex code to do complex things. What do you think? Which is better?
来自:http://jamesjava.blogspot.com/2006/04/iterating.html
推荐答案
我更喜欢 for 循环，因为它还将迭代器的范围设置为仅 for 循环.
I prefer the for loop because it also sets the scope of the iterator to just the for loop.
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