MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.io.IOException;
import java.net.ServerSocket;

public class MainClass {

    public static void main(String[] args) {

        for (int port = 1; port <= 65535; port++) {

            try {
                // the next line will fail and drop into the catch block if
                // there is already a server running on the port
                ServerSocket server = new ServerSocket(port);
            } catch (IOException ex) {
                System.out.println("There is a server on port " + port + ".");
            }
        }
    }
}