Re: Help me with THREADS !

Question

Look at the Thread class in the help docs. It's pretty easy to follow and gives 2 different ways to start threads. As for managing them, you could add observers to your thread object or event listeners (see Observer/Observable & Event/Key Event in documentation).

Answer 1

You write a new Class, lets say CopyThread.java which extends Thread. This class have to implement the run method
public void run() {}Within this run method you start a endless loop (that tests a flag if it should run again)
while(doRun)  {
try {
Thread.sleep(1000 * 60 * 10); // 10 minutes of inactivity
// list error files
File[] files = errorDir.listFiles();
// try to copy all files
for(File f : files)
// copy
catch(InterruptedException ie) {
doRun = false;
}This loop will try to copy all files in the errorDir every 10 minutes.
You can start this Thread when your App starts, it runs in the Background.
Start it like this:
CopyThread ct = new CopyThread();
ct.start();If you want to "stop" the Thread just set the flag to false ct.setDoRun(false).
This will stop it within the next 10 minutes, if you need to "stop" it immidiately call ct.interrupt(). This will cause an InterruptedException that is caught in the loop and the run method will be left, so the Thread stops. Dont call Thread.stop().