java.util.Scanner doesn't read empty line

Question

I wrote a .txt file in which each line has a meaning - even an empty one. Scanner's methods next() and nextLine() do not recognize the empty line and jump right to the line with text. I'm wondering if there is a way for the scanner to consider all lines of text regardless the content.

I don't want to use BufferedReader because I'm working with very small tokens each time.

static final String fileName = "temp.txt";
    try {
            //System.out.println(Jsoup.connect(url).get());
            Document document = Jsoup.connect(url).get();
            FileWriter fileWriter = new FileWriter(fileName);

            BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);

            Elements names = document.select("[id^=CZ]");
            for (Element name : names) {
                bufferedWriter.write(name.text());
                bufferedWriter.write(System.lineSeparator() + System.lineSeparator());
                System.out.println(name.text() + '\n');
            }
            bufferedWriter.close();
           Scanner in = new Scanner(new File(fileName));
           in.next();
           String s = names.first().text();
           String h = in.next();

           ...

At this point Strings s & h should be equal.

The document the scanner is reading starts with an empty line and goes like this:

asdkjasjkdajkdahkdjahdjadhkahdajkdajkdsasdkjasjkdajkdahkdjahdjadhkahdajkdajkdsasdkjasjkdajkdahkdjahdjadhkahdajkdajkdsasdkjasjkdajkdahkdjahdjadhkahdajkdajkdsasdkjasjkdajkdahkdjahdjadhkahdajkdajkdsasdkjasjkdajkdahkdjahdjadhkahdajkdajkdsasdkjasjkdajkdahkdjahdjadhkahdajkdajkdsasdkjasjkdajkdahkdjahdjadhkahdajkdajkdsasdkjasjkdajkdahkdjahdjadhkahdajkdajkdsasdkjasjkdajkdahkdjahdjadhkahdajkdajkdsasdkjasjkdajkdahkdjahdjadhkahdajkdajkdsasdkjasjkdajkdahkdjahdjadhkahdajkdajkds

Again, I have a dynamic file that might have first line empty and when I compare String s with String h they DO NOT equal. nextLine() and next() skip over the first line while it is still a valid element.

Answer 1

nextLine() is the method that you need. Unlinke next() , it does not skip ahead through newlines and white space.

Run this example ( demo )

Scanner sc = new Scanner(System.in);
while (sc.hasNextLine()) {
    String s = sc.nextLine();
    System.out.println("'"+s+"'");
}

on input with empty lines to see that these lines are preserved:

'quick brown'
''
'fox jumps'
'over'
''
'the'
''
'lazy dog'

Answer 2

next() method reads tokens seperated by whitespaces or newline characters on other hand nextLine() reads lines seperated by newline charater.

You can try this:

Scanner scan = new Scanner(file);
while(scan.hasNextLine()){
    System.out.println(scan.nextLine());
}