count words of sentences?

Question

i want to count number of words per sentences i write code but count character for each word in sentences this my code

public static void main(String [] args){
    Scanner sca = new Scanner(System.in);
    System.out.println("Please type some words, then press enter: ");
    String sentences= sca.nextLine();
    String []count_words= sentences.split(" ");
    for(String count : count_words){
    System.out.println("number of word is "+count.length());}
}

Answer 1

String[] count_words= sentences.split(" "); is splitting the input argument by " " that means that length of this array is the number of words. simply print the length out.

public static void main(String[] args) {
    Scanner sca = new Scanner(System.in);
    System.out.println("Please type some words, then press enter: ");
    String sentences= sca.nextLine();
    String[] count_words= sentences.split(" ");
    System.out.println("number of word is "+ count_words.length);
}

example:

oliverkoo@olivers-MacBook-Pro ~/Desktop/untitled folder $ java Main
Please type some words, then press enter: 
my name is oliver
number of word is 4