AnThreadGroupFactoryworkinmutiThread计算机等级考试

文章作者 100test 发表时间 2010:01:01 12:24:32
来源 100Test.Com百考试题网

　　package thread.
　　import java.util.concurrent.ThreadFactory.
　　/**
　　* Thread Factory with Thread Group, which can work in multi thread env,
　　* can create thread by daemon flag, and named each thread in creating.
　　*
　　*/
　　class ThreadGroupFactory implements ThreadFactory{
　　//attributes
　　private ThreadGroup _threadGroup.
　　private String _namePrefix.
　　private boolean _createDaemonFlag.
　　private int _numThreads.
　　private final Object _synLock = new Object().
　　//assign the thread group
　　public ThreadGroupFactory(ThreadGroup threadGroup, String namePrefix) {
　　_threadGroup=threadGroup.
　　_namePrefix = namePrefix.
　　_numThreads=0.
　　}
　　//use parent thread group
　　public ThreadGroupFactory(String namePrefix) {
　　this(Thread.currentThread().getThreadGroup(), namePrefix).
　　}
　　//assign the daemon flag
　　public void createDaemonThreads(boolean createDaemonFlag){
　　synchronized(_synLock){
　　_createDaemonFlag=createDaemonFlag.
　　}
　　}
　　@Override
　　public Thread newThread(Runnable r) {
　　String threadName.
　　boolean daemonFlag.来源：考试大
　　synchronized(_synLock){
　　threadName = _namePrefix _numThreads.
　　daemonFlag = _createDaemonFlag.
　　}
　　Thread thread = new Thread(_threadGroup, r, threadName).
　　thread.setDaemon(daemonFlag).
　　return thread.
　　}
　　}

　　编辑特别推荐:

　　Java每日一题系列