From 2e586b7b3c637a7e48e710b42e6ea92221c23037 Mon Sep 17 00:00:00 2001
From: Shravana Tirtha <34398606+shravanatirtha@users.noreply.github.com>
Date: Wed, 22 Sep 2021 21:59:16 +0530
Subject: [PATCH] Add check vowels algorithm (#2314)

---
 strings/CheckVowels.java | 48 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 strings/CheckVowels.java

diff --git a/strings/CheckVowels.java b/strings/CheckVowels.java
new file mode 100644
index 00000000..81b25406
--- /dev/null
+++ b/strings/CheckVowels.java
@@ -0,0 +1,48 @@
+package strings;
+
+/**
+ * Vowel Count is a system whereby character strings are placed in order based on the
+ * position of the characters in the conventional ordering of an alphabet. Wikipedia:
+ * https://en.wikipedia.org/wiki/Alphabetical_order
+ */
+class CheckVowels{
+    public static void main(String[] args) {
+        assert !hasVowels("This is a strings");
+        assert hasVowels("Hello World");
+        assert hasVowels("Java is fun");
+        assert !hasVowels("123hi");
+        assert hasVowels("Coding vs Programming");
+    }
+    
+  /**
+   * Check if a string is has vowels or not
+   *
+   * @param input a string
+   * @return {@code true} if given string has vowels, otherwise {@code false}
+   */
+    public static boolean hasVowels(String input){
+        if(input.matches("[AEIOUaeiou]")){
+            countVowels(input);
+            return true;
+        }
+        return false;
+    }
+    /**
+     * count the number of vowels
+     *
+     * @param input a string
+     * prints the count of vowels
+     */
+    public static void countVowels(String input){
+        input.toLowerCase();
+        int count=0;
+        int i=0;
+        while(i<input.length()){
+            if(input.charAt(i)=='a' || input.charAt(i)=='e'||input.charAt(i)=='i'||input.charAt(i)=='o'||input.charAt(i)=='u' ){
+                count++;
+            }
+            i++;
+        }
+        System.out.println(count);
+    }
+}
\ No newline at end of file