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POHow to Run Server Client code using Socket Programming in Java Eclipse?
 

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  1. POHow to Run Server Client code using Socket Programming in Java Eclipse?
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    <p><strong>Client code</strong>:</p> <pre><code>import java.io.*; import java.net.*; public class SimpleClient { public static void main(String[] args) throws IOException { Socket clientSocket = null; try { clientSocket = new Socket(args[0], 4442); } catch (UnknownHostException e) { System.err.println("Don't know about host: " + args[0] + "."); System.exit(1); } catch (IOException e) { System.err.println("Couldn't get I/O for " + "the connection to: " + args[0] + ""); System.exit(1); } BufferedInputStream in; BufferedOutputStream out; try { in = new BufferedInputStream(clientSocket.getInputStream()); out = new BufferedOutputStream(clientSocket.getOutputStream()); } catch (IOException e) { System.out.println(e.toString()); return; } byte[] m_txt = args[1].getBytes(); out.write(m_txt, 0, m_txt.length); out.flush(); byte[] m_rcv = new byte[m_txt.length]; int n = in.read(m_rcv, 0, m_rcv.length); if (n != m_rcv.length) { System.out.println("Some data are lost ..."); } System.out.println(new String(m_rcv)); out.close(); in.close(); clientSocket.close(); } } </code></pre> <p><strong>Server</strong>:</p> <pre><code>import java.io.*; import java.net.*; public class SimpleServer { public static void main(String[] args) throws IOException { boolean listening = true; ServerSocket serverSocket = null; try { serverSocket = new ServerSocket(4442); } catch (IOException e) { System.err.println("Could not listen on port: 4444."); System.exit(1); } while(listening) { Socket clientSocket = serverSocket.accept(); (new SimpleConHandler(clientSocket)).start(); } serverSocket.close(); } } </code></pre> <p><strong>Connection Handler:</strong></p> <pre><code>import java.io.*; import java.net.*; public class SimpleConHandler extends Thread { private Socket clientSocket; public SimpleConHandler(Socket clientSocket) { this.clientSocket = clientSocket; } public void run() { BufferedInputStream in; BufferedOutputStream out; try { in = new BufferedInputStream(clientSocket.getInputStream()); out = new BufferedOutputStream(clientSocket.getOutputStream()); } catch (IOException e) { System.out.println(e.toString()); return; } try { byte[] msg = new byte[4096]; int bytesRead = 0; int n; while((n = in.read(msg, bytesRead, 256)) != -1) { bytesRead += n; if (bytesRead == 4096) { break; } if (in.available() == 0) { break; } } for(int i=bytesRead; i&gt;0; i--) { out.write(msg[i-1]); } out.flush(); } catch(IOException e1) { System.out.println(e1.toString()); } try { out.close(); in.close(); clientSocket.close(); } catch ( IOException e2 ) {;} } } </code></pre> <p>First i RUN Server, but when i try to RUN Client, the error which i am getting is:</p> <p><strong>Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 0 at SimpleClient.main(SimpleClient.java:11)</strong></p> <p>May be i have to use different consoles to run both the Server and the Client? If so, then please tell me the way. i am using Java Eclipse 1.6 SE.</p>
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