You need a try catch block in order to catch the exception being thrown
. . .
I added one just to get teh code to compile but you will have to take a
closer look at the code to see where you want to place it.
I tried to bold the additions. Good luck. . .
****************************************************
import java.net.*;
public class MulticastChatServer {
public static void main(String[] args) {
// throws Exception //error is here "Illegal start of
expression.and ";" is needed
* try {*
int portnumber = 1236;
if (args.length >= 1) {
portnumber = Integer.parseInt(args[0]);
}
MulticastSocket serverMulticastSocket = new
MulticastSocket(portnumber);
System.out.println("MulticastSocket is created at port " +
portnumber);
InetAddress group = InetAddress.getByName("224.0.0.1");
serverMulticastSocket.joinGroup(group);
System.out.println("joinGroup method is called...");
boolean infinite = true;
while (infinite) {
byte buf[] = new byte[1024];
DatagramPacket data = new DatagramPacket(buf, buf.length);
serverMulticastSocket.receive(data);
String msg = new String(data.getData()).trim();
System.out.println("Message received from client = " + msg);
}
serverMulticastSocket.close();
}* catch (Exception e) {
e.printStackTrace();*
}
}
}
****************************************************
pradeepan patra wrote:
> hiiiiii friends
>
> Can anyone say me what is the error in this code
>
> import java.net.*;
> public class MulticastChatServer
> {
> public static void main(String[] args)
> {
> throws Exception //error is here "Illegal start of
> expression.and ";" is needed
> {
> int portnumber = 1236;
> if (args.length >= 1)
> {
> portnumber = Integer.parseInt(args[0]);
> }
> MulticastSocket serverMulticastSocket =new
> MulticastSocket(portnumber);
> System.out.println("MulticastSocket is created at port
> "+portnumber);
> InetAddress group=InetAddress.getByName("224.0.0.1");
> serverMulticastSocket.joinGroup(group);
> System.out.println("joinGroup method is called...");
> boolean infinite = true;
> while(infinite)
> {
> byte buf[] = new byte[1024];
> DatagramPacket data =new DatagramPacket(buf, buf.length);
> serverMulticastSocket.receive(data);
> String msg =new String(data.getData()).trim();
> System.out.println("Message received from client = "
> + msg);
> }
> serverMulticastSocket.close();
> }
> }
> }
>
> >
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