Send Free SMS using Java code

package freesms;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;

public class SendSMS
{

public static void main(String[] args)
{
try {
// Construct data
String apiKey = "apikey=" + "2D5i+ah7Dtw-6Ggu4kukZUJrnHddMJLXjNvFGstF3A"; // only 10 credits left
String message = "&message=" + "This is your message";
String sender = "&sender=" + "TXTLCL"; //not to be changed
String numbers = "&numbers=" + "8744973456";

// Send data
HttpURLConnection conn = (HttpURLConnection) new URL("https://api.textlocal.in/send/?").openConnection();
String data = apiKey + numbers + message + sender;
conn.setDoOutput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Length", Integer.toString(data.length()));
conn.getOutputStream().write(data.getBytes("UTF-8"));
final BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
final StringBuffer stringBuffer = new StringBuffer();
String line;
while ((line = rd.readLine()) != null)
{
stringBuffer.append(line);
System.out.println(">>> "+stringBuffer);

}
rd.close();

//return stringBuffer.toString();

  }
catch (Exception e)
{
System.out.println("Error SMS " + e);
//return "Error " + e;
}

}

}
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---------
 NOTE
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Website :  https://control.textlocal.in/settings/apikeys/
id: amitin2015@gmail.com
P/W: S****g***19
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