#1. LeetCode| Java 11 | String Programs | Easy | Sorting the Sentence

https://leetcode.com/problems/sorting-the-sentence/description/

  1. Get all words from the given sentence.
  2. We will be required a data structure to store the words at their correct position. We can use an Array or Array List.
  3. Extract the index value from each word and use this index value to insert the word into the data structure.
  4. Join the words to form a sentence.
package strings.easy; // https://leetcode.com/problems/sorting-the-sentence/ import java.util.ArrayList;
import java.util.List; public class SortingTheSentence { // Using Array public static String sortSentence(String sentence) { // Splt sentence to get words String[] words = sentence.split(" "); // Create an array of same length as words count String[] wordsWithCorrectPosition = new String[words.length]; // Iterate word by word for(String word : words) { // Extract last char from word int index = Character.getNumericValue(word.charAt(word.length() - 1)); // Insert word at its correct position in array wordsWithCorrectPosition[index - 1] = word.substring(0, word.length()-1); } // Join all words of array with whitespace as delimiter return String.join(" ", wordsWithCorrectPosition); } // Using ArrayList public static String sortSentenceWithArrayList(String sentence) { // Splt sentence to get words String[] words = sentence.split(" "); // Create a new ArrayList from above array ArrayList wordsList = new ArrayList(List.of(words)); // Iterate word by word for(String word : words) { // Extract last char from word int index = Character.getNumericValue(word.charAt(word.length() - 1)); // Replace word at its correct position in ArrayList wordsList.set(index - 1, word.substring(0, word.length()-1)); } // Join all words of array with whitespace as delimiter return String.join(" ", wordsList); } public static void main(String[] args) { System.out.println(sortSentence("is2 sentence4 This1 a3")); System.out.println(sortSentence("Myself2 Me1 I4 and3")); System.out.println(sortSentenceWithArrayList("is2 sentence4 This1 a3")); System.out.println(sortSentenceWithArrayList("Myself2 Me1 I4 and3")); }
}

This is a sentence
Me Myself and I
This is a sentence
Me Myself and I

https://github.com/amod-mahajan/LeetcodeSolvedByAmod