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import javax.imageio.*;
import java.awt.image.*;
import java.awt.*;
import java.security.NoSuchAlgorithmException;
import java.security.MessageDigest;
import java.lang.reflect.*;
import java.net.*;
import java.io.*;
import javax.swing.*;
import java.util.concurrent.*;
import java.util.regex.*;
import java.util.List;
import java.util.zip.*;
import java.util.*;
public class main {
static String helloString;
static String programID; // filled by JavaX
static int port; // use random port
public static void main(String[] args) throws Exception {
helloString = "Hello. This is #" + programID; // my hello string
port = installHelloMessage(helloString);
print("Hello world. Sleeping. Port=" + port);
sleep();
}
// returns port number
static int installHelloMessage(final String helloString) { try {
final ServerSocket serverSocket = new ServerSocket(0);
int port = serverSocket.getLocalPort();
//serverSocket.setSoTimeout(1000);
Thread _t = new Thread() {
public void run() {
try {
// todo: higher priority
while (true) {
try {
final Socket s = serverSocket.accept();
print("connect");
Thread _t = new Thread() {
public void run() {
try {
try {
Writer w = new OutputStreamWriter(s.getOutputStream(), "UTF-8");
w.write(helloString + "\n");
w.close();
//s.close(); // rather wait for client to disconnect.
} finally {
print("disconnect");
}
} catch (Exception _e) {
throw _e instanceof RuntimeException ? (RuntimeException) _e : new RuntimeException(_e); } }
};
_t.start();
} catch (SocketTimeoutException e) {
}
}
} catch (Exception _e) {
throw _e instanceof RuntimeException ? (RuntimeException) _e : new RuntimeException(_e); } }
};
_t.setDaemon(true);
_t.start();
return port;
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static void sleep(long ms) {
try {
Thread.sleep(ms);
} catch (Exception e) { throw new RuntimeException(e); }
}
static void sleep() { try {
synchronized(main.class) { main.class.wait(); }
} catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}
static void print() {
System.out.println();
}
static void print(Object o) {
System.out.println(o);
}
static void print(long i) {
System.out.println(i);
}
}