PaymentProtocolClientSocket.java

package wallettemplate;

import java.io.IOException;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;

public class PaymentProtocolClientSocket {

    public static void sendPaymentRequest(String request) {
        String hostName = "localhost";
        int portNumber = 15462;

        try {
            Socket socket = new Socket(hostName, portNumber);
            PrintWriter out = new PrintWriter(socket.getOutputStream(), true);

            out.println(request);
            socket.close();


        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}