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How to use HashSet<string>.Contains() method in case -insensitive mode?
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The contains() method of Java HashSet class is used to check if this HashSet contains the specified element or not. It returns true if element is found otherwise, returns false.
HashSet contains() Method in JavaHashSet. contains() method is used to check whether a specific element is present in the HashSet or not. So basically it is used to check if a Set contains any particular element. Parameters: The parameter element is of the type of HashSet.
The purpose of the contains method is to check if an element is present in a given HashSet. It returns true if the element is found, otherwise false. Whenever an object is passed to this method, the hash value gets calculated. Then, the corresponding bucket location gets resolved and traversed.
On average, the contains() of HashSet runs in O(1) time. Getting the object's bucket location is a constant time operation.
You can create the HashSet with a custom comparer:
HashSet<string> hs = new HashSet<string>(StringComparer.OrdinalIgnoreCase); hs.Add("Hello"); Console.WriteLine(hs.Contains("HeLLo")); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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