What's the fastest way to output a string to system out?

Question

I\'m doing something like this:

for (int i = 0; i < 100000; i++) {
   System.out.println( i );
}

Basically, I compute an integer and out

Answer 1

Keep in mind that I/O operations are very slow compared to in-memory processing (e.g. parsing of Integer). So, I would propose you to create the whole string 'in advance' and then print it out only once (of course if its possible):

StringBuilder sb = new StringBuilder();

for(int i = 0 ; i < 100000; i++) { sb.append(i).append("\n");}
String printMe = sb.toString(); 
System.out.println(printMe);

There are various techniques like buffering the the level of output stream you're using, but I assume that you prefer to stay with the most basic System.out.println

Hope this helps