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作者 | 正文 |
发表时间:2014-03-05
最后修改:2014-03-05
楼主可用如下代码测试
private static long addFirstEleForList(List list) { long start = System.currentTimeMillis(); Object o = new Object(); for (int i = 0; i < total/10; i++) list.add(0, o); return System.currentTimeMillis() - start; } private static void compareAddFirst() { System.out.println("ArrayList耗时:" + addFirstEleForList(new ArrayList())); System.out.println("LinkedList耗时:" + addFirstEleForList(new LinkedList())); } |
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