Reverse Vowels of a String
As a Systems Engineer at Tata Consultancy Services, I deliver exceptional software products for mobile and web platforms, using agile methodologies and robust quality maintenance. I am experienced in performance testing, automation testing, API testing, and manual testing, with various tools and technologies such as Jmeter, Azure LoadTest, Selenium, Java, OOPS, Maven, TestNG, and Postman.
I have successfully developed and executed detailed test plans, test cases, and scripts for Android and web applications, ensuring high-quality standards and user satisfaction. I have also demonstrated my proficiency in manual REST API testing with Postman, as well as in end-to-end performance and automation testing using Jmeter and selenium with Java, TestNG and Maven. Additionally, I have utilized Azure DevOps for bug tracking and issue management.
Given a string s, reverse only all the vowels in the string and return it.
The vowels are 'a', 'e', 'i', 'o', and 'u', and they can appear in both lower and upper cases, more than once.
LeetCode Problem - 345
class Solution {
// Method to reverse the vowels in a given string
public String reverseVowels(String s) {
// Convert the input string to a character array
char[] stringArray = s.toCharArray();
// ArrayList to store the vowels in the original order
ArrayList<Character> tempVowels = new ArrayList<>();
// Iterate through each character in the string and add vowels to tempVowels
for (char leftChar : stringArray) {
if (leftChar=='a' || leftChar=='e' || leftChar=='i'|| leftChar=='o'|| leftChar=='u' ||
leftChar=='A' || leftChar=='E' || leftChar=='I'|| leftChar=='O'|| leftChar=='U') {
tempVowels.add(leftChar);
}
}
// Counter variable to iterate through tempVowels in reverse order
int z = 0;
// Iterate through each character in the string in reverse order
for (int j=stringArray.length-1; j>=0; j--){
char rightChar = stringArray[j];
// If the character is a vowel, replace it with the corresponding vowel from tempVowels
if (rightChar=='a' || rightChar=='e' || rightChar=='i'|| rightChar=='o'|| rightChar=='u' ||
rightChar=='A' || rightChar=='E' || rightChar=='I'|| rightChar=='O'|| rightChar=='U'){
stringArray[j] = tempVowels.get(z);
z++;
}
}
// Convert the character array back to a string and return
return new String(stringArray);
}
}
