Java Set Delete Remove
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// 删除时必须通过iterator.remove()来执行,不能直接使用set的remove()来执行,不然会出现java.util.ConcurrentModificationException异常
/* Iterator<String> delIter = keySet.iterator();
while(delIter.hasNext()){
if(delIter.next().equals(authorname))
// delIter.remove();
}
// removePerson(coauthor);
*/
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