Sample

import java.text.MessageFormat;
import java.util.Date;
import java.util.Locale;

public class MessageFormatReuse {
  public static void main(String args[]) {
    String pattern = "{0}K was deleted on {1}.";
    MessageFormat formatter = new MessageFormat(pattern);

    Double kb = new Double(3.5);
    Date today = new Date();
    Object[] arguments = { kb, today };

    formatter.setLocale(Locale.US);
    System.out.println(formatter.format(arguments));
  }
}