How to close serverSocket/socket?

Question

Hello!
I would like to stop my server and close socket and serversocket
Here is simple code
import java.net.*;
import java.io.*;
public class SimpleServer {
public static void main(String[] args) throws IOException {
ServerSocket serverSocket = null;
try {
System.out.println("create server socket");          
serverSocket = new ServerSocket(2020);
} catch (IOException e) {
System.err.println("Could not listen on port: 2020");
System.exit(1);
Socket clientSocket = null;
try {
clientSocket = serverSocket.accept();
System.out.println("listening.....");
} catch (IOException e) {
System.err.println("Accept failed.");
System.exit(1);
clientSocket.close();
serverSocket.close();
It does not work - just waiting for client requests all time.
How to fix it?
Thanks

Answer 1

Control-C will do it....
But the problem is that the accept method will block waiting for a connection. When you are writing servers, typically you would have several threads. One would hold the server socket and block on accept. When a connection comes in, you would get the client socket and start a new thread to handle that client. Then you still have the main event thread where you would do something to wait for a command (button click, commandline input, etc) to close the server socket.