Put character in SimpleDateFormat

I want to validate the code of Date.

Input come from Textbox where user enters it. and in code it will get calender's date instance and match it.

I want to put character in that SimpleDateFormat.

Code :

SimpleDateFormat formatter = new SimpleDateFormat("dd'ch' MMM, yyyy");
System.out.println("Date is :: " + formatter.format(Calendar.getInstance().getTime()));


String input = "20th Mar, 2014";

if(input.equals(formatter.format(Calendar.getInstance().getTime()))){
    System.out.println("Matched");
}else{
    System.out.println("Not Matched");
}

I want to put th, rd, st on place of ch in SDF. means it will take input from user so it can be any date so I want some mechanism so only three will be placed at there.

Anyone knows that how can I do this ? Help..

UPDATE

        SimpleDateFormat formatterth = new SimpleDateFormat("dd'th' MMM, yyyy");
        SimpleDateFormat formatterrd = new SimpleDateFormat("dd'rd' MMM, yyyy");
        SimpleDateFormat formatternd = new SimpleDateFormat("dd'nd' MMM, yyyy");
        SimpleDateFormat formatterst = new SimpleDateFormat("dd'st' MMM, yyyy");

    String input = "20th Mar, 2014";
    String input1 = "23rd Mar, 2014";

    try {
         if(input.equals(formatterth.parse(input1)) || input.equals(formatterrd.parse(input1)) || input.equals(formatternd.parse(input1)) || input.equals(formatterst.parse(input1))){
              System.out.println("Matched");
          }else{
              System.out.println("Not Matched");
                }
            } catch (ParseException e) {
                e.printStackTrace();
            }