https://java2blog.com/java-program-count-number-words-string/
package org.arpit.java2blog.java8;
public class CountNumberOfWordsInStringMain {
public static void main(String[] args) {
String str = "welcome to java tutorial on Java2blog";
int count = 1;
for (int i = 0; i < str.length() - 1; i++)
{
if ((str.charAt(i) == ' ') && (str.charAt(i + 1) != ' '))
{
count++;
}
}
System.out.println("Number of words in a string : " + count);
}
}
