Write a program that prompts the user to input a sequence of characters and outputs the number of vowels. (Use the function is Vowel written in Programming Exercise 2.) Solution VowelTest.java import java.util.Scanner; public class VowelTest { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Scanner scan = new Scanner(System.in); System.out.println(\"Please enter the sequence of characters :\"); String s = scan.nextLine(); boolean status = false; int vowelCount = 0; for(int i=0; i<s.length(); i++){ status = isVowel(s.charAt(i)); if(status == true){ vowelCount++; } } System.out.println(\"The Number of Vowels : \"+vowelCount); } public static boolean isVowel(char c){ boolean status = false; char vowels[] = {\'a\',\'e\',\'i\',\'o\',\'u\',\'A\',\'E\',\'I\',\'O\',\'U\'}; for(int i=0; i<vowels.length; i++){ if(vowels[i] == c){ status = true; break; } } return status; } } Output: Please enter the sequence of characters : Hai Good Morning The Number of Vowels : 6 .

1. Write a program that prompts the user to input a sequence of characters and outputs the number
of vowels. (Use the function is Vowel written in Programming Exercise 2.)
Solution
VowelTest.java
import java.util.Scanner;
public class VowelTest {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner scan = new Scanner(System.in);
System.out.println("Please enter the sequence of characters :");
String s = scan.nextLine();
boolean status = false;
int vowelCount = 0;
for(int i=0; i<s.length(); i++){
status = isVowel(s.charAt(i));
if(status == true){
vowelCount++;
}
}
System.out.println("The Number of Vowels : "+vowelCount);
}
public static boolean isVowel(char c){
boolean status = false;
char vowels[] = {'a','e','i','o','u','A','E','I','O','U'};
for(int i=0; i<vowels.length; i++){
if(vowels[i] == c){
status = true;

2. break;
}
}
return status;
}
}
Output:
Please enter the sequence of characters :
Hai Good Morning
The Number of Vowels : 6