How do I convert a multiple strings into a set of strings?

So I have following strings,

String a = "123, 541, 123"
String b = "527"
String c = "234, 876"

I would like to loop over these strings, split the string by "," and store it in a set of string so that I have such final output,

("123", "541", "527", "234", "876")

Any idea how I can achieve this?

I have tried splitting the string but that results in Set<String[]> and not sure how to proceed with this since I am very new to this.

>Solution :

First, you need to separate strings in "a" and "c" variable. For that you can you can you split() method. You can try code below and adapt it in a way that fits your needs.

Set<String> strings = new HashSet<>();

String a = "123, 541, 123";
String b = "527";
String c = "234, 876";

private void addToSet(String stringNumbers) {
    
    for(String str : Arrays.asList(stringNumbers.split(","))) {
        strings.add(str);
    }
    
}