Question

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Java: How to convert comma separated String to ArrayList

I have a the String Red*Blue*Yellow*Green*White. How do I break that String out by * into a List<String>?

Answer 1

You can try this: –

String str = "Red*Blue*Yellow*Green";
String[] arr = str.split("\\*");
List<String> list = new ArrayList<String>(Arrays.asList(arr));

NOTE:-

Arrays.asList returns you an unmodifiable list, so if you want a modifiable list, you need to create a new list by using the constructor of ArrayList, that takes a Collection object as parameter.

Also, since * is a special character in Regex, and String.split() takes a Regex for splitting. So, you need to escape the * with a backslash.

OUTPUT: –

[Red, Blue, Yellow, Green]