java - Why is printing "B" dramatically slower than printing "#"?

itemprop="text">

I generated two matrices of
1000 x
1000:

First
Matrix: O and #.
Second
Matrix: O and
B.

Using the following
code, the first matrix took 8.52 seconds to
complete:

Random r = new
            Random();
for (int i = 0; i < 1000; i++) {
 for (int j = 0; j
            < 1000; j++) {
 if(r.nextInt(4) == 0) {

            System.out.print("O");

 } else {

            System.out.print("#");
 }
 }


            System.out.println("");

            }

With this code, the
second matrix took 259.152 seconds to
complete:

Random r =
            new Random();
for (int i = 0; i < 1000; i++) {
 for (int j = 0; j
            < 1000; j++) {
 if(r.nextInt(4) == 0) {

            System.out.print("O");
 } else {
 System.out.print("B"); //only line
            changed
 }
 }



            System.out.println("");
}

What
is the reason behind the dramatically different run
times?

---

As
suggested in the comments, printing only System.out.print("#");
takes 7.8871 seconds, whereas
System.out.print("B"); gives still
printing....

As others
who pointed out that it works for them normally, I tried rel="noreferrer">Ideone.com for instance, and both pieces of code execute
at the same speed.

Test
Conditions:

• I ran this
  test from Netbeans 7.2, with the output into its
  console


• I used System.nanoTime()
  for measurements

class="post-text" itemprop="text">

class="normal">Answer

Pure
speculation is that you're using a terminal that attempts to do href="http://en.wikipedia.org/wiki/Word_wrap"
rel="noreferrer">word-wrapping rather than character-wrapping, and treats
B as a word character but # as a
non-word character. So when it reaches the end of a line and searches for a place to
break the line, it sees a # almost immediately and happily
breaks there; whereas with the B, it has to keep searching for
longer, and may have more text to wrap (which may be expensive on some terminals, e.g.,
outputting backspaces, then outputting spaces to overwrite the letters being
wrapped).

But that's pure
speculation.