String Related programs in java

Java program to count the number of words in a string?

solution 1: Using Split() method

import java.util.Scanner;

class WordsCount {
 public static void main(String[] args) {
  
  System.out.println("Enter the string");
  
  Scanner sc = new Scanner(System.in);
  
  String s = sc.nextLine();
  
  String[] words = s.trim().split(" ");
  
  System.out.println("Number of words in the string = " + words.length);
  
 }
 
}

solution 2: Using charAt(-) method

import java.util.Scanner;
class WordsCount2{

public static void main(String[] args)
    {
        System.out.println("Enter the string");
 
        Scanner sc = new Scanner(System.in);
 
        String s=sc.nextLine();
 
        int count = 1;
 
        for (int i = 0; i < s.length()-1; i++)
        {
            if((s.charAt(i) == ' ') && (s.charAt(i+1) != ' '))
            {
                count++;
            }
        }
 
        System.out.println("Number of words in a string = "+count);
    }
}