Thread Concurrency problem

Question

Hello
i have an application where i have about 6 threads....I have each of this thread working independently ..i.e each thread has its publis static main method.....they are continuously running..... and they are working correctly.... but the problem is that i have run each thread explicitly....
But now i want to combine all these threads into one thread so that when i run my java application all these threads will start running.....I tried doing it but the problem is that the first thread itself runs...the other threads do not run...... how do i do this????
The code of the program where i clubbed the threads is
public class MainThread
public static void main(String arg[])
NewThread n= new NewThread() ;
System.out.println("in psvm") ;
class NewThread extends Thread
String name; // name of thread
Thread t;
NewThread()
System.out.println("in newthread") ;
SMSSendThread sms=new SMSSendThread() ;
UsernameThread user=new UsernameThread() ;
user.start() ;
SendInbox inbox=new SendInbox() ;
inbox.start() ;
DeleteSMS delete=new DeleteSMS() ;
delete.start();
My start method of each of these thread contains ie.deleteSMS,SendInbox
public void start()
HashSet<Socket> clients = new HashSet<Socket>() ;
try
Boolean listening=true ;
ServerSocket ss=new ServerSocket(2345) ;
Socket socket=new Socket() ;
int id=0;
while(listening)
System.out.println("Detecting Client please Wait in send thread:=") ;
socket = ss.accept();
clients.add(socket);
System.out.println("clients display:="+clients) ;
if(clients.contains(socket))
InetAddress clientIP=socket.getInetAddress() ;
System.out.println("the ip addrss of the client:="+clientIP) ;
new ConnectionHandlerdelete(socket).start() ;
The problem is that only the Username thread exceutes priopely the other two are not running!!!!

Answer 1

Then why are the other threads not runningIf that is your code you are mistaken about this.
> the newthread class runs as it is supposed to
The newthread class constructor runs as it is supposed to , and it starts the other threads. You never call start on it so it never executes its run() method. It doesn't even appear to have a run() method.
So either this is not your real code or your observations are mistaken.