Weird behavior of appending Strings

Asked Sep 06 '18 at 19:12

Active Sep 06 '18 at 20:34

Viewed 58 times

I am using the following code to generate a text dump of an object:

public static String generateText(Quiz quiz){
    String endResult = "";
    for (QuizQuestion question : quiz.getQuestions()) {
        endResult += question.getQuestion();
        endResult += System.lineSeparator();
        endResult += question.getAnswer1();
        endResult += System.lineSeparator();
        endResult += question.getAnswer2();
        endResult += System.lineSeparator();
        endResult += question.getAnswer3();
        endResult += System.lineSeparator();
        endResult += question.getAnswer4();
        endResult += System.lineSeparator();
        endResult += question.getCorrectAnswer();
        endResult += System.lineSeparator();
    }

    return endResult;
}

However when I print endResult to a file tis is the output:

questiona1a2a3a4a

Then it prints 4 empty lines. How can this be fixed?

asked Sep 06 '18 at 19:12

Heng Ye

2

why don't you override the `toString()` method instead? You can use that to make a text representation of all the fields and values within the object. – Maurice Sep 06 '18 at 19:14
Do you get the same result if you hard-code the results of `question` method calls? – Mad Physicist Sep 06 '18 at 19:16
If I hard-code the results the newlines appear as normal. – Heng Ye Sep 06 '18 at 19:21
I just tried to add QuizQuestion code but when I click SaveEdit button on Edit page it doesn't work – Heng Ye Sep 06 '18 at 19:24
1

Then you need to provide the code of your question object, the code you use to call this method and the code you use to print the result. Basically, a minimal reproducible example. – Mad Physicist Sep 06 '18 at 19:25
https://stackoverflow.com/questions/31984415/system-lineseparator-returns-nothing – nabeel Sep 06 '18 at 19:33
@nabeel. How is that related? – Mad Physicist Sep 06 '18 at 19:36
It's not. The newlines are printed (empty lines) just in the wrong location – Heng Ye Sep 07 '18 at 18:55

Weird behavior of appending Strings

0 Answers0