Question

Ms. Marple is an English teacher at CCCC. She has a theory that more than 20% of the letters in sentences written by her students are vowels (aeiou). She wants you to write a program that will accept sentences and count the vowels as well as the total number of characters in the sentence. After all the sentences are entered, display the totals and the percentage. Write the program so it accepts sentences until a zzz is entered. Also use a user- defined function as part of the solution. A sample of the input and output is shown below. SL Problems @ Javadoc Declaration Console X <terminated> Sentence [Java Application) C:\Program Files Vava\jre-9.0.4\bin\javaw.exe (Apr 9, 2018, 9:47:36 AM) Enter a sentence or zzz to exit This is a test Enter a sentence or zzz to exit This is a test Enter a sentence or zzz to exit zzz Total number of vowels 8 Total number of non-vowels 14 Percent 36.36363636363637%

Answer 1

Java Code :

import java.util.Scanner;
public class Vowel{
   public static void main(String[] args) {
   //variable to store the sentence from user
   String sentence;
   //variables to stores vowels and non-vowels
   int vowels = 0,consonants = 0;
   //Scanner to take input from user
   Scanner sc = new Scanner(System.in);
   //taking the sentence from user
   System.out.print("Enter zzz to exit or sentence");
   sentence = sc.nextLine();
   //if sentence not equals to "zzz" then we continue until they enter
   while(!sentence.equals("zzz")){
       //iterating character by character in sentence
       for(int i=0;i<sentence.length();i++){
           //checking for vowels if character is vowel increse vowels other wise consonants
           if((sentence.charAt(i) == 'a' || sentence.charAt(i) == 'A') ||
               (sentence.charAt(i) == 'e' || sentence.charAt(i) == 'E') ||
               (sentence.charAt(i) == 'i' || sentence.charAt(i) == 'I') ||
               (sentence.charAt(i) == 'o' || sentence.charAt(i) == 'O') ||
               (sentence.charAt(i) == 'u' || sentence.charAt(i) == 'U')
           ){
               vowels++;
           }else{
               if(sentence.charAt(i) != ' ' && sentence.charAt(i) != '\n'){
                   consonants++;
               }
           }
       }
       //again asking to user enter sentence
       System.out.print("Enter a sentence or ZZZ to exit ");
       sentence = sc.nextLine();
   }
//printing the vowels and non-vowels
System.out.println("Total number of vowels "+vowels);
System.out.println("Total number of non-vowels "+consonants);
//printing the percentage by calculating (no.vowels*100)/totalcharacters
System.out.println("Percent "+(double)vowels*100/(consonants+vowels) + "%");
sc.close();
}
}

import java.util.Scanner; public class Vowel{ public static void main(String[] args) { //variable to store the sentence from user String sentence; //variables to stores vowels and non-vowels int vowels = 0,consonants = 0; //Scanner to take input from user Scanner sc = new Scanner(System.in); //taking the sentence from user System.out.print("Enter a sentence or zzz to exit "); sentence = sc.nextLine(); //if sentence not equals to "zzz" then we continue until they enter while( ! sentence.equals("zzz")) { //iterating character by character in sentence for(int i=0;i<sentence.length(); i++){ //checking for vowels if character is vowel increse vowels other wise consonants if((sentence.charAt(i) == 'a' || sentence.charAt(i) == 'A') || (sentence.charAt(i) == 'e' || sentence.charAt(i) == 'E') || (sentence.charAt(i) == 'i' || sentence.charAt(i) == 'I') || (sentence.charAt(i) == 'o' || sentence.charAt(i) == '0') || (sentence.charAt(i) == 'u' || sentence.charAt(i) == 'U') ) { vowels++; }else{ if(sentence.charAt(i) != '' && sentence.charAt(i) != '\n'){ consonants++; //again asking to user enter sentence System.out.print("Enter a zzz to exit or sentence"); sentence = sc.nextLine();

//printing the vowels and non-vowels System.out.println("Total number of vowels "+Vowels); System.out.println("Total number of non-vowels "+consonants); //printing the percentage by calculating (no. vowels*100)/totalcharacters System.out.println("Percent "+(double) vowels*100/(consonants+vowels) + "%"); sc.close();

Output :

varma@varma-Latitude-3490:-/Desktop$ javac Vowel.java varma@varma-Latitude-3490:-/Desktop$ java Vowel Enter a sentence or zzz to exit This is a test Enter a sentence or zzz to exit This is a test Enter a sentence or ZZZ to exit zzz Total number of vowels 8 Total number of non-vowels 14 Percent 36.36363636363637% varma@varma-Latitude-3490:-/Desktops

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