java - How to use String replace correctly in this case? -

i have got sms template shown below

user: xxxxxxxxxxxxxxxxxx, ph: xxxxxxxxxx, loc: xxxxxxxxxxxxxxxxxxxx, area: xxxxxxxxxxxxxxxxxxxx, added home delivery. please review details

where xxxxxx needs filled dynamic values

i have tried way shown below

but when run program output getting

user: kiran, ph: 11111111111111, loc: kiranxx, area: kiranxx, added home delivery. please review details 

it adding xx end program

import java.net.unknownhostexception;  import org.apache.log4j.logger;  public class test {     final static logger logger = logger.getlogger(test.class);      public static void main(string args[]) throws unknownhostexception     {          string user = "kiran";         string phone = "11111111111111";         string loc = "my location";         string area = "my area";           string message = "user: xxxxxxxxxxxxxxxxxx, ph: xxxxxxxxxx, loc: xxxxxxxxxxxxxxxxxxxx, area: xxxxxxxxxxxxxxxxxxxx, added home delivery. please review details\r\n" +                  "";          message = message.replace("xxxxxxxxxxxxxxxxxx", user);         message = message.replace("xxxxxxxxxx", phone);         message = message.replace("xxxxxxxxxxxxxxxxxxxx", loc);         message = message.replace("xxxxxxxxxxxxxxxxxxxx", area);          system.out.println(message);       }  } 

could please tell me how resolve issue ??

you should use this:

string template = "user: %s, ph: %s, loc: %s, area: %s, added home delivery. please review details\r\n";  string result = string.format(template, user, phone, loc, area); 

javadoc of string.format() here