How do I count size of every word in this string?

Question

I want to be able to output the letter size of each word. So far my code only outputs the letter size of the first word. How do I get it to output the rest of the words?

import java.util.*;

public final class CountLetters {
  public static void main (String[] args) {

    Scanner sc = new Scanner(System.in);
    String words = sc.next();
    String[] letters = words.split(" ");

    for (String str1 : letters) {
       System.out.println(str1.length() ); 
    }   
  } 
}

score 1 · Answer 1 · answered Mar 03 '14 at 19:46

1

Using sc.next() will only let the scanner take in the first word.

 String words = sc.nextLine();

answered Mar 03 '14 at 19:46

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score 1 · Accepted Answer · answered Mar 03 '14 at 19:48

It's just because next returns only the first word (or also called the first 'token'):

String words = sc.next();

To read the entire line, use nextLine:

String words = sc.nextLine();

What you are doing should work then.

The other thing you can do is go ahead and use next all the way (instead of a split) because Scanner already searches for tokens using whitespace by default:

while(sc.hasNext()) {
    System.out.println(sc.next().length());
}

score 0 · Answer 3 · answered Mar 03 '14 at 20:02

Iterate over all of the scanner values:

public final class CountLetters {
    public static void main (String[] args) {
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()) {
            String word = sc.next();
            System.out.println(word.length() );
        }
   }
}

How do I count size of every word in this string?

3 Answers3