scan.hasNext() breaks before printing last line in code in While loop?

Question

Why is this loop not printing the last line in the .txt file that I have saved elsewhere? It prints out all the lines except the very last one.

int count = 0;

Courses[] POS = new Courses[26];

while (scan.hasNext())
{
    POS[count] = new Courses(scan.nextLine());

    System.out.println(POS[count]);
    scan.nextLine();

    count++;
}

Do you mean to do nextLine() twice?

demongolem
– demongolem

2013-01-30 19:51:49 +00:00
Commented Jan 30, 2013 at 19:51 — demongolem
– demongolem, Commented Jan 30, 2013 at 19:51

Caesar Ralf · Accepted Answer · 2013-01-30 20:31:39Z

1

You are getting the next line twice. You are lucky it doesn't throw a NPE or another exception :P

answered Jan 30, 2013 at 20:31

Caesar Ralf

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Comments

Brenden Brown · Accepted Answer · 2013-01-30 21:05:06Z

0

I think the problem is that, as demongolem pointed out in the comments, you're calling scan.nextLine() twice.

If you have an even-numbered length of lines, that would mean this would print out every other line. If you have an odd-numbered length of lines, that would mean it would print out every other line, then throw an exception (NoSuchElement I believe?)

http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Scanner.html#nextLine.

answered Jan 30, 2013 at 21:05

Brenden Brown

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