[06 Feb 2020] How to reverse words in String Java?

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

/**
 * Java Program to reverse words in String. There are multiple way to solve this
 * problem. you can either use any collection class e.g. List and reverse the
 * List and later create reverse String by joining individual words.
 *
 * @author Javin Paul
 */
public class Testing {

  public static void main(String args[]) {

  }

  /*
  * Method to reverse words in String in Java
  */
  public static String reverseWords(String sentence) {
  List< String> words = Arrays.asList(sentence.split("\\s"));
  Collections.reverse(words);
  StringBuilder sb = new StringBuilder(sentence.length());

  for (int i = words.size() - 1; i >= 0; i--) {
  sb.append(words.get(i));
  sb.append(' ');
  }

  return sb.toString().trim();
  }

  public static String reverseString(String line) {
  if (line.trim().isEmpty()) {
  return line;
  }

  StringBuilder reverse = new StringBuilder();
  String[] sa = line.trim().split("\\s");

  for (int i = sa.length - 1; i >= 0; i--) {
  reverse.append(sa[i]);
  reverse.append(' ');
  }

  return reverse.toString().trim();
  }
}
}