Find The Number Of Words Possible Without Duplicates - Java Quiz Question

Write a program to get the number of words possible using a alphabets array.
Assume that there are no duplicate alphabets.

Input(char Array)	Output
{ 'r', 'a', 'i', 'n', 'b', 'o', 'w' }	5040
{ 'f', 'r', 'u', 'i', 't', 's' }	720
{ 'n', 'e', 'w', 's' }	24
{ 'a', 'e', 'i', 'o', 'u' }	120
{ 's', 'u', 'n', 'f', 'l', 'o', 'w', 'e', 'r' }	362880
{}(EMPTY ARRAY)	1


			

			class CombinationsWithoutDuplicates 
 { 

			    public static void main(String s[])
    {
        char inputArray[] = {'r',
                     'a',
                     'i',
                     'n',
                     'b',
                     'o',
                             'w'};
        System.out.println("The number of combinations are : " + getCombinationCount(inputArray));                

    }
 
			

			

					        public static int getCombinationCount(char array[]) 

					        {


					        } 

					     

					     

					        public static int getFactorial(int number) 

					        { 

					            int fact = 1;


					            return fact; 

					        } 

			
}

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