public void TestUniqueStringApproach1()
        {
            var instanceStringUnique = new StringUnique();
            string currentString = "Edwin Arockiaraj";
            bool isStringUnique = instanceStringUnique.IsStringUnique(currentString);
            Console.WriteLine("Is String {0} Unique: {1}",currentString,isStringUnique);

            currentString = "Alwyn Jesu";
            isStringUnique = instanceStringUnique.IsStringUnique(currentString);
            Console.WriteLine("Is String {0} Unique: {1}", currentString, isStringUnique);
        }
        public void TestUniqueStringAdvancedApproach()
        {
            var instanceStringUnique = new StringUnique();
            string currentString = "Edwin Arockiaraj";
            bool isStringUnique = instanceStringUnique.IsStringUniqueAdvancedMethod(currentString);
            Console.WriteLine("Is String {0} Unique: {1}", currentString, isStringUnique);

            currentString = "Alwyn Jesu";
            isStringUnique = instanceStringUnique.IsStringUniqueAdvancedMethod(currentString);
            Console.WriteLine("Is String {0} Unique: {1}", currentString, isStringUnique);

            currentString = "abcdefghijklmnopqrstuvwxyz";
            isStringUnique = instanceStringUnique.IsStringUniqueAdvancedMethod(currentString);
            Console.WriteLine("Is String {0} Unique: {1}", currentString, isStringUnique);
        }