遍历同步收集 [英] Iterating over synchronized collection

问题描述

我在这里问了一个关于在Vector上进行迭代的问题，并为我提供了一些好的解决方案.但是我读到另一种更简单的方法.我想知道这是否是很好的解决方案.

I asked here a question about iterating over a Vector, and I have been answered with some good solutions. But I read about another simpler way to do it. I would like to know if it is good solution.

synchronized(mapItems) {
    Iterator<MapItem> iterator = mapItems.iterator();
    while(iterator.hasNext())
        iterator.next().draw(g);
}

mapItems是一个同步的集合:向量.这是否使从ConcurrentModificationException进行Vector的迭代安全?

mapItems is a synchronized collection: Vector. Is that make the iterating over the Vector safe from ConcurrentModificationException?

推荐答案

是的，它将使ConcurrentModificationException成为安全的方法，而实际上一切都是单线程的.

Yes, it will make it safe from ConcurrentModificationException at the expense of everything essentially being single-threaded.

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