For loop to separate a string with spaces (Java)

Question

Is there a way to create some type of For loop to separate a string with spaces? So far I can display a string and find how many characters it has.

import java.util.Scanner;
import java.lang.String;

public class Word{
  public static void main(String args[])
  {
     Scanner scan = new Scanner(System.in);

     int b;

    String word;

    System.out.println ("Enter a word: ");
    word = scan.next();

    b = word.length();

    System.out.println (word);
    System.out.println (b);
  }
}

Why do you need to do this? i.e. do you need to understand the principle, or do you need to get the job done? — Matt Fenwick, Apr 06 '12 at 02:16
Do you have a string with spaces that you want to split, or do you want to space out a string by inserting spaces? — gobernador, Apr 06 '12 at 02:20

score 8 · Answer 1 · answered Apr 06 '12 at 02:15

8

As an alternative to Scanner, you can do something like the following:

String[] parts = line.split(" ");
for (String part : parts) {
    //do something interesting here
}

answered Apr 06 '12 at 02:15

highlycaffeinated

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score 2 · Answer 2 · answered Apr 06 '12 at 02:16

Use the split() method in the String class, like this:

String line = "a series of words";
String[] words = line.split("\\s+");

It will return a String[] with the individual words in line, for the above example it will produce this:

{"a", "series", "of", "words"}

score 1 · Answer 3 · edited Mar 16 '21 at 14:03

1

You can use String.split to split the sentence into an array of words.. something like

string[] words = word.split(" ");
for (String s: words)
{
    System.out.println(s);
    System.out.println("\n");
}

edited Mar 16 '21 at 14:03

LarsH

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answered Apr 06 '12 at 02:17

Venkata Krishna

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Note this is not Java loop syntax. Try `for (String s: words)` – LarsH Mar 11 '21 at 04:24
1

@LarsH - thanks for that. was using C#, corrected now – Venkata Krishna Mar 15 '21 at 17:03
Thanks for correcting the code. However I just now read the OP's comments, saying that he or she wanted to *insert* spaces into the string. ::shrug:: – LarsH Mar 16 '21 at 17:28

score 0 · Answer 4 · answered Apr 06 '12 at 02:16

0

have you tried looking at the java API? there are a lot of different functions you can use ... top of my head split would work nicely and you wouldn't even have to write a loop

http://docs.oracle.com/javase/6/docs/api/

answered Apr 06 '12 at 02:16

keshav

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It has to be a for loop, sorry – jerms246 Apr 06 '12 at 02:22
can you clarify the question.. is the objective to print out each word separated by a space ? – keshav Apr 06 '12 at 02:30

score 0 · Answer 5 · answered Apr 06 '12 at 02:18

0

This is untested, but I feel like this is a learning exercise so this should put you on the right path. In the for loop you access each character of the word as a sub-string and concatenate a space on the end (end of the word as well).

string word2 ="";
for (int i = 0; i<word.length-1;i++) {
    word2 = word.substring(i, i+1)+" ";
}

answered Apr 06 '12 at 02:18

RyanS

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Sorry, missed that, take a look at your previous code. You've done the same thing before. (consider substituting b) – RyanS Apr 06 '12 at 03:13

score 0 · Answer 6 · answered Apr 12 '21 at 10:02

0

I am using following code:

Arrays.stream(yourString.split(" ")).forEach( element -> {
                // do something with each element
                System.out.println(element + "\n");
            });

answered Apr 12 '21 at 10:02

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For loop to separate a string with spaces (Java)

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