My guess would be that the constructor of CLost somehow blocks and does
not return. Without seeing more of your program I cannot tell you the
exact problem. You probably want to create a separate thread for doing
stuff like printing something every 30 minutes.
Class MyThread extends Thread {
public void run() {
long last = System.currentTimeMillis();
while(true) {
if((last + 30 * 60 * 1000) <= Sysytem.currentTimeMillis()) {
System.out.println("30 mins passed");
last = System.currentTimeMillis();
}
try {
Thread.sleep(1000);
} catch(InterruptedException ie) {
}
}
}
}
public static void main(String[] args) throws Exception {
MoteIF mote = new MoteIF((net.tinyos.util.Messenger)null);
MyThread mt = new MyThread();
mt.start();
CLost c = new CLost(mote);
//**************************************
}
Cheers,
Urs
Muhammad Azhar schrieb:
> Hi all,
>
> I have some problems with implementing my own Java program. Let me
> just show a sample of my Java program:
>
> public class CLost implements MessageListener {
> private MoteIF mote;
> //..........
> public CLost(MoteIF mote) {
> //register mote and other stuff.........
> }
>
> public void messageReceived(int dstAddr, Message msg) {
> //do something on receiving packets
> }
>
> public static void main(String[] args) throws Exception {
> MoteIF mote = new MoteIF((net.tinyos.util.Messenger)null);
> CLost c = new CLost(mote);
> //**************************************
> }
> }
>
> Basically, what I want to do is, besides printing out the message
> received, I would also like it to print other messages, which is
> independent of the message received - say at every interval of 30mins,
> I'd want to print "30 mins passed". Thus, this message should not be in
> the messageReceived(..) method. When I tried creating another method
> and calling it from the main, it doesn't print out that particular
> message although the conditions were met. Even when I tried to print:
> System.out.println("Hello");
> in the //************************************** area, it doesn't work
> too. Any idea how I can do so?
> Thanks in advance.
>
> Regards,
> Azhar
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