557. Reverse Words in a String III(Solution || Leetcode easy || Java)

Palakkgoyal
1 min readNov 24, 2022

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Given a string s, reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order.

Example 1:

Input: s = "Let's take LeetCode contest"
Output: "s'teL ekat edoCteeL tsetnoc"

Example 2:

Input: s = "God Ding"
Output: "doG gniD"

Constraints:

  • 1 <= s.length <= 5 * 104
  • s contains printable ASCII characters.
  • s does not contain any leading or trailing spaces.
  • There is at least one word in s.
  • All the words in s are separated by a single space.

SOLUTION:

class Solution {
public String reverseWords(String s) {
//Store words of s as elements of an array
String[] temp = s.split(" ");

//Create a stringbuilder array to reverse the elements
StringBuilder[] sb = new StringBuilder[temp.length];


//Add elements from the string array to the stringbuilder array and
//also reverse them
for(int i = 0; i < temp.length; i++){
sb[i] = new StringBuilder(temp[i]);
sb[i] = sb[i].reverse();
}
//Create a stringbuilder or you can also make a string to add
//the reversed elements
StringBuilder ans = new StringBuilder();

for(int i = 0; i < temp.length; i++){
if(i < temp.length - 1){
ans.append(sb[i] + " ");
}else{
ans.append(sb[i]);
}
}



return ans.toString();
}
}

Thank you for reading. If you have any queries then, please let me know in the comment section. I will surely be responsive toward it.

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Palakkgoyal
Palakkgoyal

Written by Palakkgoyal

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