Trim or replace all commas and spaces from the String

Question

Hi i am developing android application.Now i stuck in one problem. Let me give you a example to understand my problem.

What I have is : kushal,mayurv,narendra,dhrumil,mark, ,,,, ,

What i want is : kushal,mayurv,narendra,dhrumil,mark

Any help is appreciated.

Answer 1

Try with the following code to trim all unwanted comma and whitespaces

String str = "kushal,mayurv,narendra,dhrumil,mark, ,,,, ";
        String splitted[] = str.split(",");
        StringBuffer sb = new StringBuffer();
        String retrieveData = "";
        for(int i =0; i<splitted.length; i++){
            retrieveData = splitted[i];
            if((retrieveData.trim()).length()>0){

                if(i!=0){
                    sb.append(",");
                }
                sb.append(retrieveData);

            }
        }

    str = sb.toString();
    System.out.println(str);

Answer 2

Use regex to solve it. You want to remove all (,) that are followed by space or another (,). You also want to remove all (,) that isn't followed by a letter.

Regex in Android

yourstring = yourstring.replaceAll("( ,)|(,,)", ""); 

Something like that, sorry that I can't help you more.