数组的插入、删除、扩容本质上都是用的数组的复制。Java中数组的拷贝如下：System.arraycopy(Objectsrc,intsrcPos,Objectdest,intdestPos,intlength)1publicclassArrayCopy1{2publicstaticv

publicvoidonEvent(MessageEventevent){log(event.message);}publicvoidonEventMainThread(MessageEventevent){textField.setText(event.

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SHOWSTATUS;FLUSHSTATUS;查看当前连接数SHOWSTATUSLIKE'Thread\_%';Thread\_cached:被缓存的线程的个数Thread\_running：处于激活状态的线程的个数Thread\_connected：当前连接的线程的个数Thread\_created：总共被创建