Using Scanner to read text file and print using List

Question

This is for a homework assignment, for a game of Hangman. Now, I got the whole game working except for this part. Reading the dictionary list that the teacher provided.

public static void main(String[] args) throws FileNotFoundException {

    Scanner fileScan = new Scanner(new File(words.txt));

    List<String> dictionary = new ArrayList<String>();
    while (fileScan.hasNext()) {

        dictionary.add(fileScan.nextLine().toLowerCase());
    }
    for( int i = 0; i < dictionary.size(); i++) {

        System.out.println(dictionary.get(i));
    }
}

I separated this part from the code to be able to test it. I also made the dictionary file into just 5 words. When I hit run, it doesn't print out anything. Just a blank space.

have you tried to print it `fileScan.nextLine().toLowerCase()` to check if it has a value? — Dyrandz Famador, Apr 16 '15 at 01:45
don't forget to close your resource; add a fileScan.close(); after your while loop is through — Woodrow, Apr 16 '15 at 01:53

score 0 · Accepted Answer · edited May 23 '17 at 12:06

0

words.txt must be quoted 'coz it's a string.

like this

 Scanner fileScan = new Scanner(new File("words.txt"));

also make sure that the file path of your txtfile is correct. you can use either ABSOLUTE PATH OR RELATIVE PATH

when printing all the data, you can also simply do it like this using foreach

for(String item:dictionary){
    System.out.println(item);
}

edited May 23 '17 at 12:06

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answered Apr 16 '15 at 01:47

Dyrandz Famador

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So, I tried this and when I run in command prompt, this appears: "ÿ?i a a d". I just don't get why those 2 symbols appear in front of the first one. – HeyZeusV Apr 16 '15 at 02:03
what do you mean by this `"ÿ?i a a d"` ? is there an error? – Dyrandz Famador Apr 16 '15 at 02:06
I am so sorry. I should have said more. It is outputting correctly except for the ""ÿ?". Those two symbols are nowhere in the dictionary file. "i a ad" should be the only output. – HeyZeusV Apr 16 '15 at 02:10
did you use foreach for print it or you use for loop? – Dyrandz Famador Apr 16 '15 at 02:19
I used the one you gave me, the foreach – HeyZeusV Apr 16 '15 at 02:20
what is your encoding type of your textfile? – Dyrandz Famador Apr 16 '15 at 02:23
i get it now, the problem because your output console is not supporting the UTF-8 data – Dyrandz Famador Apr 16 '15 at 02:29
read this to understand more, http://www.mkyong.com/java/how-to-read-utf-8-encoded-data-from-a-file-java/ – Dyrandz Famador Apr 16 '15 at 02:29
if you print it on your IDE like netbeans or eclipse etc., maybe that symbol won't appear – Dyrandz Famador Apr 16 '15 at 02:30
Unicode. I am slowly adding words and those two symbols seem to only appear on the first term. Which should be fine for my game since a random word is going to be selected from a huge list. But it would be nice to fix this problem now. – HeyZeusV Apr 16 '15 at 02:30

Using Scanner to read text file and print using List

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