摘要：
java has deprecate many function as "stop","destroy"等, here is an article written by sun.explains why deprecate and how to do to control thread, 看了比较受用http://docs.oracle.com/javase/1.5.0/docs/guide/misc/threadPrimitiveDeprecation.html 阅读全文
摘要：
有三种方式,EntrySet----forEach----keySet前2种比较后,keyset实际要遍历2轮.******EntrySet********Iterator it = tempMap.entrySet().iterator(); while (it.hasNext()) { Map.Entry entry = (Map.Entry) it.next(); Object key = entry.getKey(); Object value = entry.getValue(); System.out.println("key=" + key + " 阅读全文