Reverse words in a given String in Java

Greeksforgreeks reference

import java.util.regex.Pattern;

class ReverseWordInGivenString {

    static String reverseWords(String str) {

        // Specifying the pattern to be searched

        Pattern pattern = Pattern.compile("\\s");

        // splitting String str with a pattern

        // (i.e )splitting the string whenever their

        //  is whitespace and store in temp array.

        String[] temp = pattern.split(str);

        String result = "";

  

        // Iterate over the temp array and store

        // the string in reverse order.

        for (int i = 0; i < temp.length; i++) {

            if (i == temp.length - 1)

                result = temp[i] + result;

            else

                result = " " + temp[i] + result;

        }

        return result;

    }    

public static void main (String[] args) {

String s1 = "Welcome to geeksforgeeks";

        System.out.println(reverseWords(s1));

  

        String s2 = "I love Java Programming";

        System.out.println(reverseWords(s2));

}

}