Java Practicals

Exception Handling 7 - Write a Java program to create a method that takes a string as input and throws an exception if the string does not contain vowels.


            public class Exception_handling_7 {
                public static void main(String[] args) {
                  try {
                    String text = "Java handling and managing exceptions ";
                    // String text = "Typy gyps fly.";
                    System.out.println("Original string: " + text);
                    checkVowels(text);
                    System.out.println("String contains vowels.");
                  } catch (NoVowelsException e) {
                    System.out.println("Error: " + e.getMessage());
                  }
                }
              
                public static void checkVowels(String text) throws NoVowelsException {
                  boolean containsVowels = false;
                  String vowels = "aeiouAEIOU";
              
                  for (int i = 0; i < text.length(); i++) {
                    char ch = text.charAt(i);
                    if (vowels.contains(String.valueOf(ch))) {
                      containsVowels = true;
                      break;
                    }
                  }
                  if (!containsVowels) {
                    throw new NoVowelsException("String does not contain any vowels.");
                  }
                }
              }
              class NoVowelsException extends Exception {
                public NoVowelsException(String message) {
                  super(message);
                }
              }

Output