Question

Design an algorithm ( code C ) to calculate the frequency of each of the vowels (lowercase and uppercase) in a text. The program will ask the user for a text, which will be entered by keyboard and will save, in a table (in%), the frequency of each of the vowels within the text, taking into account all the characters of the text. The text will end with the character '' # ''. Includes the emty sequence.

Answer 1

The following program illustrates the given question:

 // Java program to print Number of // Vowels import java.util.*; import java.lang.*; import java.io.*; public class Stringfun {       void words(String str) { int vCount = 0; for (int i = 0; i < str.length(); i++) { char c = str.charAt(i); switch (c) { // program for calculating number of vowels case 'A': case 'E': case 'I': case 'O': case 'U': case 'a': case 'e': case 'i': case 'o': case 'u': vCount++; } } System.out.println("Number of vowels = " + vCount); } // Driver program to run and test above program public static void main(String args[]) throws IOException {      int l;  String str; Scanner sc=new Scanner(System.in); do{ str = sc.nextLine(); l=str.length(); }while((str.charAt(l-1))!='#'); Stringfun obj = new Stringfun(); obj.words(str); } }