Word counter - Java example

The program counts the number of words in a string. It removes the leading and trailing spaces of the received string. Then it searches for the space-character pattern as the indicator of a word.

You'll learn most by trying my code while watching the video.

Please post your improvement on my code on the comments.

Concepts:
For loop
Scanner class
String operations

Playlist of my Java course

Playlist of my Java examples

[furkanveliisk]

The logic behind it is so simple yet so elegant and impressive. Thank you yet again for these great examples.

[jacobb.]

I feel like this makes more sense and is shorter:

import java.util.ArrayList;

import java.util.Scanner;
public class WordCounter {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String input = in.nextLine();
in.close();

ArrayList<String> words = new ArrayList<>();
for(String str : input.split(" ")) {
if(str.length() > 0) words.add(str); //account for empty strings made by .split()
}
System.out.println("Word Count: " + words.size());
}
}

[kresh]

Really helps with practicing java. Thanks !

[brocklesnar]

Sir what if we don't know how many lines are in a paragraph(assuming there are lines more than one), then how can we make String userInput to store all those lines??

[ayoubelgueddari]

hi, you could use split and it will return an array than print the length of array ?

[vijayvarma]

You have better approach that is engaging.