Replace comma with newline in java

Question

My requirement is to replace all commas in a string with newline.

Example:

AA,BB,CC

should represent as

AA
BB
CC

here's my implementation to replace commas with newline,

public String getFormattedEmails(String emailList) {
    List<String> emailTokens = Arrays.asList(emailList.split(","));
    String emails = "";
    StringBuilder stringBuilder = new StringBuilder();
    String delimiter = "";
    for(String email : emailTokens){
        stringBuilder.append(delimiter);
        stringBuilder.append(email);
        delimiter = "\n";
    }
    emails = stringBuilder.toString();
    return emails;
}

this method replaces all commas with a space. can anyone point me where did I go wrong?

Answer 1

Simply use following code:

String emailList="AA,BB,CC";
emailList=emailList.replaceAll(",", "\n");
System.out.println(emailList);

Output

AA
BB
CC

Now based on above your code, your method looks like following:

public String getFormattedEmails(String emailList) {
String emails=emailList.replaceAll(",", "\n");
return emails;
}

Hope it helps:

Answer 2

String emails = emailList.replaceAll(",", "\n");