Untitled

package STRINGS;
import java.util.Scanner;

public class CountNoOfWords {

    /**
     *This Class Takes a string s consisting of words and spaces, return the number of words in the string.
     * A word is defined as a sequence of non-space characters separated by at least one space.
     *
     * Examples:
     * Input: s = "Take you forward"
     * Output: 3
     * Explanation: The string has 3 words separated by spaces.
     *
     * Input: s = " Hello  World "
     * Output: 2
     * Explanation: Multiple spaces between and around words are ignored.
     */

    public static int countNoOFWords(String s){

        int wordcount = 0;
        boolean isWord = false;

        for (int i = 0; i < s.length(); i++) {
            if (s.charAt(i) != ' ') {
                if (!isWord) {
                    wordcount++;
                    isWord = true;
                }
            } else {
                isWord = false;
            }
        }
        return wordcount;
    }

    public static void main(String[] args) {

        Scanner s = new Scanner(System.in);
        System.out.print("ENTER A STRING - ");
        String str = s.nextLine();

        System.out.print("NO OF WORDS IN A STRING -> " +  countNoOFWords(str));
    }
}