New members that use an acl have been added to the i o , registry , and threading classes I / o類、注冊表類和線程類中添加了使用acl的新成員。
The thread could be implemented by using runnable interface or by inheriting from the thread class 線程可以執(zhí)行調(diào)用可運(yùn)行接口或從線程類繼承.前者是較為有利。
A : the thread could be implemented by using runnable interface or by inheriting from the thread class 線程可以執(zhí)行調(diào)用可運(yùn)行接口或從線程類繼承.前者是較為有利。
This class creates a thread and also contains the code that the thread executes , without the need for creating an additional method for the delegate 無需為委托創(chuàng)建更多方法,線程類即可創(chuàng)建一個(gè)線程并且包含該線程執(zhí)行的代碼。
Supplying and returning values in a multithreaded application is complicated because the constructor for the thread class must be passed a reference to a procedure that takes no arguments and returns no value 在多線程應(yīng)用程序中提供和返回值是很復(fù)雜的,因?yàn)楸仨殞δ硞€(gè)過程的引用傳遞給線程類的構(gòu)造函數(shù),該過程不帶參數(shù)也不返回值。
In order to project the cooperative virtual classroom , the paper introduces cscw simply and researches some key technology of cscw application system such as cscw system structure , cluster cooperative work model , cooperative control system , the main task is to design application layer protocol , it use special thread classes to realize communication ; and supplies the model and key communication technology among clusters , and the realizing method of which is a typical application . in the paper , we use servlets of java to realize electronic blackboard system , and it handle much synchronous request in the meantime , thus it realize realtime discussion in the cooperative virtual classroom 將計(jì)算機(jī)支持的協(xié)同工作技術(shù)應(yīng)用到虛擬教室中,稱之為支持計(jì)算機(jī)協(xié)同操作的虛擬教室。為了開發(fā)協(xié)同虛擬教室系統(tǒng),論文中對cscw進(jìn)行了簡單的介紹;研究與探討了開發(fā)cscw應(yīng)用系統(tǒng)的一些關(guān)鍵技術(shù),如對cscw的體系結(jié)構(gòu)的研究、群體協(xié)作模式的研究、協(xié)作控制機(jī)制的研究;提出了對協(xié)同控制模塊的設(shè)計(jì),其中主要是應(yīng)用層協(xié)議設(shè)計(jì),在實(shí)現(xiàn)中采用專門的線程類進(jìn)行數(shù)據(jù)通信管理;群組通信的關(guān)鍵技術(shù)。