Java - Speed-Test about printing to stdout.

    public static void main(String[] args) {
        List<Long> times = new ArrayList<Long>();

        int iterations = 100;
        int secondIterations = 25;

        long start = System.currentTimeMillis();
        for (int count = 0; count < iterations; count++) {
            for (int secondCounter = 0; secondCounter < secondIterations; secondCounter++) {
                System.out.print("*");
            }
            System.out.println();
        }
        times.add(System.currentTimeMillis() - start);

        start = System.currentTimeMillis();
        for (int count = 0; count < iterations; count++) {
            String line = "";
            for (int secondCounter = 0; secondCounter < secondIterations; secondCounter++) {
                line += "*";
            }
            System.out.println(line);
        }
        times.add(System.currentTimeMillis() - start);

        start = System.currentTimeMillis();
        for (int count = 0; count < iterations; count++) {
            StringBuilder builder = new StringBuilder();
            for (int secondCounter = 0; secondCounter < secondIterations; secondCounter++) {
                builder.append("*");
            }
            System.out.println(builder.toString());
        }
        times.add(System.currentTimeMillis() - start);

        System.out.println("Direct: " + Long.toString(times.get(0)) + "ms");
        System.out.println("String: " + Long.toString(times.get(1)) + "ms");
        System.out.println("Stringbuilder: " + Long.toString(times.get(2)) + "ms");
    }