Question

Print frequency of vowels in given word using recursion

				
					ENTER THE WORD
abcdefghijklmno
FREQUENCY OF VOWELS IN abcdefghijklmno IS 4

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Code

				
					import java.util.Scanner;
public class frequencyVowelsInWord
{
    char ch=' ';
    public int FrequencyOfVowels(String wd,int i,int count)
    {

        if(i< wd.length())
        {
            ch=wd.charAt(i);
            
            if(ch=='a'||ch=='e'||ch=='i'||ch=='o'||ch=='u')
            {
                count++;

            }
            return FrequencyOfVowels(wd,i+1,count);
        }
        else
        {
            return count;  
        }
    }

    public static void main()
    {
        String wd="";
        Scanner sc=new Scanner(System.in);
        frequencyVowelsInWord ob1=new frequencyVowelsInWord();
        System.out.println("ENTER THE WORD");
        wd=sc.next();
        wd=wd.toLowerCase();
        System.out.print("FREQUENCY OF VOWELS IN "+wd+" IS "+ob1.FrequencyOfVowels(wd,0,0));

    }

}