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A comprehensive guide on how to correctly insert a stray syllable before single vowels in Java while bypassing double vowels. Perfect for beginners and advanced users alike!
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This video is based on the question https://stackoverflow.com/q/72033225/ asked by the user 'Seth' ( https://stackoverflow.com/u/15995870/ ) and on the answer https://stackoverflow.com/a/72033526/ provided by the user 'Jhanzaib Humayun' ( https://stackoverflow.com/u/16333281/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Insert av Before Vowels Without Affecting Double Vowels in Java

In programming, handling strings can often present unique challenges. One such challenge involves inserting a specific syllable before every single vowel without affecting those vowels that are part of a double vowel sequence. In this guide, we will explore how to implement a Java solution to this problem that retains the integrity of the original word.

Understanding the Problem

The task is straightforward: you need to insert the syllable "av" before each vowel (a, e, i, o, u) in a given string, but only if the vowel is not preceded by another vowel. For example:

The word "Cat" should be transformed to "Cavat".

However, the word "Meet" should remain as "Meet" instead of changing to "Maveavet" because both vowels are consecutively present.

Constraints

Syllable Insertion: Insert "av" before each vowel.

Double Vowel Handling: Do not insert "av" if a vowel is preceded by another vowel.

The Solution

To solve this problem, we will iterate through the characters of the string and check each character to determine if it is a vowel while considering its neighboring characters. Below are the detailed steps we'll implement in the code:

Step 1: Initialize the Setup

Convert the input text into a character array for easy manipulation.

Use a StringBuilder to construct the new string efficiently.

Step 2: Define Vowels

We'll create a collection (like a HashSet) to hold the vowels (a, e, i, o, u) for quick lookup.

Step 3: Loop Through the Array

Check the first character: If it's a vowel and not preceded by another vowel, prepend "av".

Main Loop: For each character in the string:

Check if the current character is a vowel.

Ensure it's not preceded by another vowel.

If both conditions are met, prepend "av".

Check the last character to handle it similarly to the first character.

The Code

Here is the Java implementation based on the steps discussed above:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

With this solution, we can effectively handle cases of vowel insertion while avoiding pitfalls caused by double vowels. This Java method can be easily adjusted for various similar challenges, making it a versatile tool in your string manipulation arsenal.

Feel free to try this code and see how it works with different input strings. Happy coding!