How to replace all commas (,) in a String with a commas between double quotes (“,”)?

Question

If I have a string like this

String names = {"lucy, john, frank"} but I want the string to look like: {"lucy","john","frank"}

So I want to replace all commas with commas in double quotes ( "," )

I have String newNames = names.replaceAll(",", "",""); But this doesn't work. What's wrong?

Answer 1

Escape double quotes in string literals.

String names = "{\"lucy,john,frank\"}";
String newNames = names.replace(",", "\",\"");

Also, using String.replace is already enough for your purpose. String.replaceAll is for regular expressions.

Answer 2

You need to escape the " like \\"

do instead :

String newNames = names.replaceAll(",", "\",\"");

Answer 3

This function will do it for any string

  public static String fun(String str) {
    return str.replace(".", "\",\"");
}

Answer 4

If you were using PHP i would suggest explode() and implode() but in Java you can use String.split() and String.join() . So what you want to do is:

String names = {"lucy, john, frank"};
String splitted = names.split(", ");

Hope it helps!!!