Apps sendTextMessage

[nlearnandroid]

Hi All

I am trying to send SMS through program.I am able to send text SMS on Single recipient(only one number) at a time but i try to send SMS more than one number.Then i have found some article,i read that article and implement it.But it's not working for me.

ArrayList<String> myArr = new ArrayList<String>();
             
          myArr.add("557");
          myArr.add("12178");
 StringBuilder sb = new StringBuilder();
            for (String string : myArr) {
                sb.append(string);
                sb.append(";");
            }
                sm.sendTextMessage(sb.toString(), null, message, null,  null);

Please help me