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import java.net.*;
import java.io.*;

public class TestScanner {
  public static void main(String[] args) {
    Socket socket;
    String host = "students.mimuw.edu.pl";
    System.out.println("Skanuje porty hosta: " + host);
    for (int i = 1; i &lt; 100; i++) {
	  try {
	    socket = new Socket(host, i);
	    System.out.println("na porcie " + i + " dziala serwer");
	    socket.close();
	  }
	  catch (UnknownHostException e) {
	    System.err.println(e);
	    break;
	  }
	  catch (IOException e) {
	    System.out.println("port " + i + " zamkniety");
	  }
    } 
  }
} 
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