public?class?DaemonThreadDemo?{
/**
*?@param?args
*/
public?static?void?main(String[]?args)?{
System.out.println("進入Main線程?"?+?Thread.currentThread().getName());
ThreadDaemon?daemonThread?=?new?ThreadDaemon();
Thread?t1?=?new?Thread(daemonThread,?"DaemonThread1");
t1.setDaemon(true);
t1.start();
Scanner?sc?=?new?Scanner(System.in);
sc.next();
System.out.println("退出Main線程?"?+?Thread.currentThread().getName());
}
}
class?ThreadDaemon?implements?Runnable?{
@Override
public?void?run()?{
System.out.println("進入守護線程?"?+?Thread.currentThread().getName());
try?{
writeToFile();
}?catch?(Exception?e)?{
e.printStackTrace();
}
System.out.println("退出守護線程?"?+?Thread.currentThread().getName());
}
private?void?writeToFile()?throws?Exception?{
File?fileName?=?new?File("d:"?+?File.separator?+"JavaDameonThread.txt");
OutputStream?os?=?new?FileOutputStream(fileName,?true);
int?count?=?0;
while(count?<?100)?{
os.write(("\r\nHello?Java"?+?count).getBytes());
System.out.println("守護線程?"?+?Thread.currentThread().getName()
+?"向文件中寫了?Hello?Java?"?+?count++);
Thread.sleep(1000);
}
}
}