/Java/How to add a singleton hashset in java

How to add a singleton hashset in java

// With Class Type
Set<String> set = new HashSet<>(Arrays.asList("a", "b", "c"));
//Anonymous Class
Set<String> set = new HashSet<String>(){{
    add("a");
    add("b");
    add("c");
}};

Source: baeldung.com

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